The Brief

The International Olympic Committee issued a new policy last month, banning transgender women from participating in women's sports starting at the 2028 Summer Games and requiring all athletes who want to compete in the female category to undergo genetic testing.

The policy represents a significant inflection point in the ongoing political battle over trans women's participation in sports at all levels, including in California. It also marks a return to genetic tests that for decades dictated women's participation in the Olympics, and excluded transgender and many intersex athletes — those whose sex characteristics don't fall into the binary categories of male or female.

Genetic testing was required of women athletes for much of the second half of the 20th century, including the last time Los Angeles hosted the Olympic Games in 1984. Athletes had to present "certificates of femininity," according to the official report on the 1984 Games.

Those types of tests were stopped after the 1996 Games in Atlanta amid questions about their scientific efficacy and ability to assess what was an "unfair advantage," according to the IOC's own retelling.

Blanket genetic testing will return to the L.A. Olympics in 2028, bringing with it questions about how it will be implemented and who it will keep off the Olympic stage.

IOC says the science is settled. Some experts disagree

How to measure fairness in women's competition has been debated for at least a century, and different approaches have been used and abandoned over the decades. In recent years, the IOC had stopped requiring genetic tests and left rules around sex testing to individual athletic federations.

When IOC President Kirsty Coventry announced that the IOC would re-introduce a mandatory genetic test for all female Olympic athletes last month, she presented it as the final word on who can and can't participate in women's sports.

IOC President Kirsty Coventry speaks during an IOC Executive Board press conference on Feb. 01, 2026 in Milan, Italy.

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All women Olympic athletes will have to take a test to identify if they have an SRY gene, which is on the Y chromosome. According to the IOC news release, that SRY gene represents "highly accurate evidence that an athlete has experienced male sex development." Those with the gene will be excluded from competition except in some limited cases where the athlete is found to not to "benefit from the anabolic and/or performance-enhancing effects of testosterone."

"At the Olympic Games, even the smallest margins can be the difference between victory and defeat," Coventry said. "So, it is absolutely clear that it would not be fair for biological males to compete in the female category."

The new policy faced immediate pushback from human rights advocates and some experts in the field, including UC Irvine genetic expert Eric Vilain, who has previously advised the IOC on its inclusion policies.

He told LAist that the new IOC policy ignores women athletes with sex traits that aren't neatly aligned with the gender binary.

" Many of these athletes who were born intersex, they [looked] like a female baby, they were raised as female. They don't necessarily have male levels of testosterone," said Vilain, who said the science isn't settled on what advantage intersex women with a Y chromosome have in sport. " The answer to that is very unclear."

Decades of scrutinizing women athletes

Attempts to define the category of woman in athletic competition are nothing new.

Suspicion over the identity of women athletes started when they entered Olympic track and field competitions in 1928, according to Jaime Schultz, a kinesiology professor at Penn State who studies the history of women in sports.

" Track and field was seen as a masculine sport. The fear was that the sport would either masculinize women or else 'masculine women' might be drawn to the sport," Schultz said. "There was suspicion from the very beginning at the Olympic Games."

In the 1930s, two prominent retired athletes who had competed in women's sports transitioned to become men — exacerbating anxieties about any athletes who did not fit gendered norms.

"In the early 20th century, women’s sports were a source of moral and gender panic," historian Michael Waters, who wrote a book on those athletes, told Mother Jones. "Sports officials saw the idea that an athlete could transition gender as a threat to the binary categories they had built."

This led to the scrutiny of women who didn't fit gendered norms, according to Waters.

Women had to submit certificates from a physician in order to compete in track and field competition by the end of the 1930s, Jaime Schultz told LAist. Then came World War II and after that, the Cold War, when Schultz said suspicions turned to Soviet athletes who were suspected of "masquerading" as women. By the 60s, women in professional sport were subjected to gynecological exams and "naked parades" where they had to show their nude bodies to a panel to prove their sex.

American track star Wilma Rudolph breaks the tape at the finish line for the United States at the 1960 Olympic Games in Rome on Sept. 8, 1960.

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" They ask the women athletes to strip naked and parade themselves in front of these three physicians, who sort of look them up and down and say, 'Yes, you're a woman, you can compete in women's events,'" Schultz said. "The visual inspections [were] humiliating to the women."

Those tactics were abandoned after outcry. That's when genetic testing entered the scene.

How genetic testing began for female Olympic athletes

At the 1968 Winter Games in Grenoble, the IOC began trialing a chromosome test called the "Barr body test," which counted X chromosomes to determine an athlete's sex. But that test was scientifically questioned.

French skier Marielle Goitschel (C), Annie Famose (R), and Canadian Nancy Greene after the slalom at the 1968 near Grenoble, during the Winter Olympic Games when the IOC began trialing a chromosome test for female athletes.

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"The stated aim was to detect male athletes posing as women, though in practice the test excluded women with naturally occurring chromosomal variations," according to a history posted to the IOC website in 2023.

One such athlete was Spanish hurdler Maria José Martínez-Patiño, who went to a competition in Japan in 1985, but forgot her certificate verifying her status as a woman. When she re-took the genetic test, she learned she had a Y chromosome and was barred from competition.

Martinez-Patino had androgen insensitivity syndrome, a condition that causes the person to have "genitals that appear female, but they don’t have female reproductive organs," as NPR reported. Officials determined she did not have an unfair advantage and she was eventually allowed to compete, but the process took years and was publicly humiliating.

Spanish hurdler Maria José Martínez-Patiño, who went to a competition in Japan in 1985, re-took the genetic test and learned she had an XY chromosome and was barred from competition.

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"I knew that I was a woman, and that my genetic difference gave me no unfair physical advantage," Patino wrote in The Lancet in 2005. "I could hardly pretend to be a man; I have breasts and a vagina. I never cheated."

In 1992, the IOC introduced the SRY gene test that will now be re-introduced for the L.A. Olympics, according to Vilain at UC Irvine. That test was abandoned by the 2000 Olympics.

"There was so much outcry from the scientific community because it was also deemed not very ethical with lots of issues of privacy," Vilain said.

The rise of testosterone testing

What rose in place of the genetic testing was a new focus on testosterone levels in women athletes. That started in 2009 with South African runner Caster Semenya, who has differences of sexual development that meant she had higher than typical testosterone levels.

At the track and field World Championships, Semenya faced intense scrutiny from the public and sports officials over her appearance and gender identity. This fervor, recounted in NPR's series "Tested," led the governing body for track and field to require Semenya to take medication to lower her testosterone and implement limits to testosterone levels for female competitors.

Double Olympic champion Caster Semenya (C) in 2024 during her legal battle against regulations requiring female athletes with high testosterone to take medication as she prepares for a May hearing. Semenya is seated with her lawyers Gregory Nott (R) and Patrick Brancher (L).

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That approach, too, has faced criticism from human rights organizations for its disproportionate impact on women from the Global South and the privacy issues it raises.

"A policy that calls for scrutiny of women’s naturally-occurring hormone levels — and, in practice, their bodies for signs of perceived “masculinity” ascribed to testosterone — is a form of policing women’s bodies, and passing judgment on their “femininity” as well as on their sex and gender identity," reads a 2020 report from Human Rights Watch.

The IOC's reintroduction of genetic testing has raised even more questions about the lines drawn around women's sports — and how those lines will be implemented come 2028.

In 1984, 1,610 women athletes underwent a "gender verification test" while in L.A., according to the official report on those Olympic Games. How testing will work this time around, who will pay for it, and what controversies it might unearth are still to be seen.

A new analysis of alerts sent during the Eaton Fire found “no failure” by emergency officials to issue timely evacuation orders to areas west of Lake Avenue in Altadena.

The timing of alerts to neighborhoods west of Lake, where all but one of 19 deaths in that fire occurred, has been under scrutiny since the January 2025 fire.

The independent report by Citygate Associates was commissioned by the L.A. County Fire Department at the start of this year and was released Monday.

Its conclusions are similar to those of after-action reports from other firms — that officials did the best they could amid unprecedented fire conditions and strained resources.

“While the report provides an honest account of our operations, we recognize that no investigation can truly capture the horror and tragedy residents endured,” said L.A. County Fire Chief Anthony Marrone in a prepared statement. “My focus is to ensure that the lessons learned from the Eaton and Palisades fires are turned into lasting changes that will better protect our residents and neighborhoods into the future.”

Altadena resident Zaire Calvin — whose sister died in the fire and whose own home burned down — said the report feels like another “slap in the face.” He said he wanted to see details on any mistakes that may have been made. But reading the report, he felt blame was once again largely placed on unprecedented fire conditions.

“A  community that's already down, a community that's fighting for their lives, a community that's fighting all of the people trying to take property from them — at some point you just want accountability,” Calvin said.

L.A. County Supervisor Kathryn Barger, who represents Altadena, said in a prepared statement that the “investigation should not be interpreted as dismissing the experiences of residents. Public trust requires both accountability and a willingness to learn from every aspect of a disaster response.”

Citygate Associates, which produced an after-action report on the 2018 Woolsey Fire, used interviews, operational records, dispatch records and internal communications to analyze decisionmaking between 9 p.m. on Jan. 7, 2025, and 6 a.m. the following day.

Some of the main findings include the following:

• With aircraft grounded by  high winds, “Incident Command was forced to fight a fire while blind to its movements.” 
• Evacuation decisions were not based on “race, age or socioeconomics.” 
• “Evacuation planners who created the evacuation zone areas well before the fire tried to use, where possible, major north/south and east/west streets. … Thus, Lake Avenue was a natural, very long street that could be utilized as an anchor for creating evacuation zones.” 
• Other fire timeline reviews cite reports of fire moving westward between 11 p.m. and just before midnight, but Citygate staffers write that strained resources were focused on the eastern front of the fire at that time, which was the direction the fire was initially spreading, and that “fire progression maps … do not show the the Eaton Fire directly impacting western neighborhoods at that time.” 
• The fire initially spread westward more slowly, and did not escalate significantly until early in the morning on Jan. 8.
• Reports of fires before 1 a.m. west of Lake Avenue were likely a result of downed power lines.
• By 2 a.m., radio reports indicated embers were being cast deeper into Altadena. 
• Discussions to expand evacuation orders west started at 2:18 a.m., with evacuation orders being sent to residents west of Lake by 3:25 a.m. 
• The main fire front crossed west of Lake Avenue by about 5:15 a.m. 

Find the full report here. 

Huntington Beach must pay $50,000 for each month it continues to fail to comply with the state’s mandate to zone for more housing, according to a recent court ruling. For several years now, the city has been waging a court battle against the state's order to make way for 40,000 new homes.

The judge ruled that the city should be penalized $10,000 per month going back to January 2025, and then fined $50,000 per month, starting next month, until the city gets a compliant housing element approved.

The backstory

State law requires California cities and counties to plan for enough housing to meet the expected demand over an eight-year time period, including for low-income housing. Huntington Beach, citing its independence as a charter city, has fought its most recent housing allocation all the way up to the U.S. Supreme Court, which declined to review the case last year.

Does the state require cities to actually build that many homes?

No. Cities are not required to actually build housing, but rather to make sure their zoning and land use codes accommodate the amount of housing assigned to them through what’s known as the Regional Housing Needs Assessment (RHNA).

What does the city say?

In a statement, Casey McKeon, the city’s mayor, said the city “strongly opposes these penalties and will continue fighting for the rights of our residents and for the principle of local control against ongoing efforts by the Attorney General to centralize land use authority in Sacramento.”

Is Huntington Beach an outlier?

Yes. Huntington Beach is an outlier in its aggressive fight against the state housing mandates. More than 90% of California’s 539 jurisdictions are in compliance with the state requirement to plan for the amount of housing assigned to them through the latest RHNA cycle.

What’s next?

The city recently posted draft revisions to its housing plan — for the first time since 2021. That’s significant because the city’s efforts to come into state compliance have been paused for years.

One complication with compliance: Huntington Beach residents voted to require any major changes to the city’s zoning, including its state-mandated housing plan, to be put up for a public vote. That could mean more delays in coming into state compliance, and consequently, more fines, at a time when the city is facing a budget crunch.

During a press conference following a shooting at the San Diego Islamic Center, San Diego Police Department Chief Scott Wahl confirmed three adult victims at the center and the two suspects are dead.

Police said the suspects were found dead in the vehicle nearby. They were 17 and 19 years old. The motivation behind the shooting is unknown at this time.

Wahl said in 28 years, this is the most dynamic and impressive response he's seen in policing with help coming from agencies all over the county.

Imam of the Islamic Center of San Diego Taha Hassane said the center stands in solidarity "with all of the families in our community here and all the mosques and places of worship" in San Diego.

"This is something that we never expected, and I would also like to thank all the people who contacted us from all over the country and overseas to offer their condolences."

San Diego Mayor Todd Gloria was also present at the news conference.

"We will do anything it takes to make sure you feel safe in this city," Gloria said.

In a statement, the Council on American-Islamic Relations-San Diego Executive Director Tazheen Nizam said:

“We strongly condemn this horrifying act of violence at the Islamic Center of San Diego. Our thoughts are with everyone impacted by this attack. No one should ever fear for their safety while attending prayers or studying at an elementary school. We are working to learn more about this incident and we encourage everyone to keep this community in your prayers."

The active shooter situation was reported at 11:43 a.m. at ICSD in the 7000 block of Eckstrom Avenue in Clairemont, according to SDPD.

The department is asking people to avoid the area.

A reunification location for those impacted by the incident has been established at 4125 Hathaway Street.

According to our news partner ABC 10News, authorities shut down northbound and southbound Interstate 805 at Balboa Avenue due to the law enforcement activity.

The San Diego Unified School District confirmed several campuses were placed on lock down. SDUSD spokesperson James Canning said lockdowns are gradually being lifted but schools closest to the Islamic Center will be the last to have their lockdowns lifted.

The Islamic Center is the largest mosque in San Diego County. The center holds five daily prayers.

In California’s upcoming June primary election, you’ll have the opportunity to cast your ballot for any of the candidates for governor, regardless of which party you’re registered with. The top two vote-getters advance to the general election.

Known as a “jungle primary,” this system is different from how most states handle their primary elections.

This year, Democrats raised the alarm that two Republican gubernatorial candidates may move to the general election, locking out Democrats despite outnumbering Republican registered voters almost two to one. That’s because the crowded field of Democratic candidates threatens to split the party’s vote. Until recently, multiple polls have shown the two Republicans, former Fox News host Steve Hilton and Riverside County Sheriff Chad Bianco, polling at the top of the race.

Driven in part by these concerns, critics of the top-two primary have now filed a ballot initiative that would repeal this system and return California to party-based primaries, potentially as early as 2030.

But how does this top-two arrangement work? Why does California do things this way? And what are the chances of voters choosing between two GOP candidates for governor in November?

How does California’s top-two primary system work?

In a traditional closed primary, such as in presidential races, voters can only choose among candidates from their own party: That is, say, registered Democrats could only vote for Democratic candidates.

But in a top-two primary, all candidates from all parties appear on a single ballot open to any registered voter. The two candidates with the most votes in that primary then move on to the general election, even if they’re from the same party.

Kim Alexander, president and founder of the California Voter Foundation, said this is an even bigger concern for third parties in the state.

“One of the unfortunate byproducts” of California’s jungle primary system, Alexander said, is how “it’s really shut out a lot of minor parties from the general election and they run the risk of being kicked off the ballot altogether.”

“Because if you don’t have candidates appearing on ballots at a certain pace, then you can’t remain an official party,” she said.

Does this really mean Californians might not get a Republican vs. Democrat race for governor in November?

That’s correct: Under the top-two primary system, the November contest could be an intraparty fight.

That scenario has worried many California Democrats. With seven top Democrats crowding the field, there’s a risk of fracturing their party’s vote. Meanwhile, if enough Republican voters back both Hilton and Bianco to push them both into the top two, California could be locked into an all-Republican general election for governor.

Steve Hilton, Republican gubernatorial candidate for California, left, and Tom Steyer, Democratic gubernatorial candidate for California, fist-bump prior to a gubernatorial debate at KRON Studios in San Francisco, California, on April 22, 2026. California will hold its primary election on June 2, where the top two finishers advance to the general election in November regardless of party affiliation. (Jason Henry/Nexstar via Bloomberg)In March, state Democratic Party Chair Rusty Hicks urged politicians in his party to take a hard look at the viability of their campaigns and drop out before the filing deadline.

“California’s leadership on the world stage is significantly harder if a Democrat is not elected as our next Governor,” Hicks wrote in an open letter.

None of the contenders heeded his plea.

However, the likelihood of Republicans shutting Democrats out of the November election has decreased since President Donald Trump endorsed Hilton in April. A clear front-runner could unify Republican voters behind Hilton and open the door for a Democrat to claim the second spot in the runoff.

Plus, the most recent Emerson poll now shows former Health and Human Services Secretary Xavier Becerra in the lead with 19% of likely voters for the first time in the race. Hilton and Democrat Tom Steyer are tied for second with 17%.

Becerra’s surge came after former East Bay Rep. Eric Swalwell — who was regarded as a front-runner for the gubernatorial primary — exited the race last month amid sexual assault and misconduct allegations.

Why does California have this top-two system?

Historically, California required a two-thirds vote in the Legislature to pass the state budget instead of a simple majority vote.

In 2009, Democrats needed to court Republican votes to pass the state budget. Then-state Sen. Abel Maldonado, a Republican, agreed to vote yes — but only if the Legislature put a measure on the ballot to create the top-two primary system.

Voters approved that measure, Proposition 14, in 2010, amending the state constitution.

Then-Gov. Arnold Schwarzenegger backed the measure as a way to transform state politics, forcing candidates to appeal to voters across party lines and ultimately boost more moderate politicians.

“He liked to talk about living in a post-partisan political climate,” Alexander said. “He liked the idea of candidates having to appeal to more voters than just voters of their own party, and to face competition.”

The system was also designed to give more influence to California’s no party preference voters, who make up 23% of registered voters in the state, just behind Republicans at 25%.

Which political offices in California are decided using this system?

The top-two primary applies to “voter-nominated” offices: governor and other statewide positions like lieutenant governor, attorney general, secretary of state, state treasurer, state controller, insurance commissioner and state board of equalization members.

It also covers state Senate and Assembly seats and U.S. congressional offices.

The jungle primary system does not apply to presidential elections, local and nonpartisan offices such as city council, school boards, judges, district attorneys or the superintendent of public instruction.

Which other states use this system?

Washington state was the first to adopt a top-two primary for congressional and state-level elections in 2004, but not for governor.

Unlike California, Washington allows write-in candidates in the general election — a safety valve for scenarios where one party is locked out.

A handful of other states use variations of the system. Nebraska’s legislature is nonpartisan, so it uses a top-two primary for state legislative races.

Louisiana uses a majority-vote system for statewide executive offices, state legislative seats and local offices. If a candidate receives a majority of the vote in the primary, they win outright. If not, there is a second round of voting with the top two vote-getters in November.

Alaska adopted a top-four primary in 2020 for state executive, state legislative and congressional races. An effort to repeal the state’s top-four primaries was narrowly defeated by voters in 2024 but will be on the ballot again this year.

If I’m a ‘no party preference’ voter, can I even vote in the California primary?

Yes: Any registered voter, including those with no party preference, can vote for any candidate in voter-nominated races like the governor’s contest.

The top-two primary system draws no distinction based on a voter’s party registration.

Are there any efforts to get rid of California’s jungle primary?

Driven in part by concerns that Democrats could be locked out of this year’s governor’s race, a new ballot initiative seeks to repeal California’s top-two primary system.

Democratic strategist Steven Maviglio filed the initiative, called “Undo the Top Two,” with the attorney general on May 8.
He called the jungle primary a “failed experiment.”

“The prospect of having to vote for a candidate who’s not from your party in November has really woken up a lot of voters in the state about the dangers of the top-two primary,” Maviglio said. “The chance that a Democrat would have to choose between Chad Bianco or Steve Hilton is sending a chill up the spine of a lot of Democrats.”

However, even if successful, Maviglio’s initiative won’t impact the 2026 election — since he hopes to place the measure on the 2028 ballot, with any changes taking effect no earlier than the 2030 elections.