Two years ago, Andrew Brietbart was the subject of profiles calling him a "star of the tea party movement," and a conservative journalist who attacked the mainstream media for conspiring to make Barack Obama look good. He helped put together the Huffington Post, the Drudge Report and his own websites. With a history of heart problems, the 43-year-old reportedly collapsed and died during a walk near his home in Brentwood, a part of Los Angeles. All the leading Republican candidates are mourning his loss, which is leading the news in the conservative blogosphere. David Weigel is a political reporter for Slate.com.