Last week there was a story about a Breitbart.com reporter being roughed up by Donald Trump's campaign manager. A Washington Post reporter was on the scene and confirmed that it happened in real time. Since then, an audio tape also emerged supporting the Breitbart reporter's account of what happened.
Unfortunately for her, however, her "news" organization has spent the last six months hyping Trump's campaign as his cheerleader in chief. After initially supporting her, Breitbart became the only "news" organization to cast doubt on the reporter's story, implying that it wasn't the campaign manager who roughed up her up.
That has led to a whole series of resignations at Breitbart, most notably from the reporter herself. The New York Times (an actual news organization) has the story.