At a recent talk at the book store Politics & Prose, leftist Mother Jones journalist David Corn made the claim that conservatives have embraced radicalism in a way that liberals have not. “There’s no example that you can give me,” Corn announced, “of a high-ranking Democrat — a president, presidential candidate, a national Democratic leader — who embraces something like the Tea Party: a conspiratorial, paranoid, racist-driven force. It just doesn’t exist.”