It's the Forecast, our look at the stories that will dominate the week's news. 

Tomorrow is the day most expect Kentucky Senator Rand Paul to announce his candidacy... and much like a movie that's about to open - he put out a nearly 3 minute long trailer:

We'll find out what his platform might be, and how he stacks up against the other GOP cantidates.

And in November of 2014, Rolling Stone magazine published an article about a gang rape at a University of Virginia fraternity house two years prior.

But soon after, questions began to emerge ... and now the Columbia Graduate School of Journalism issued a scathing report which found the magazine at fault when it came to reporting, editing and fact-checking.

Joining us this week is Elahe Izadi, reporter for the Washington Post and Scott Bland - editor in chief of National Journal's Hotline.