For almost 30 years, California has been a reliably Democratic state, but when it comes to campaign fundraising, the state is ripe for both parties.

California provides the biggest share of funds to the Clinton campaign of any state at about 23 percent of her total, according to the Center for Responsive Politics. For Trump, California is matched by Texas as a lead contributor, though the totals are much lower.

For more on how the candidates are tapping California for cash this election, we're joined by Matt Artz, reporter at the San Jose Mercury News.