Hillary Clinton may not be facing much of a primary challenge, but that doesn't mean that Democrats aren't divided among themselves. Left-wing Progressives are beginning to sound like Tea-Party Conservatives. They don't want compromise with Republicans -- or other Democrats. It starts at the top with the President and Senator Elizabeth Warren disagreeing on free trade, and it's playing out in primary races around the country. One reporter calls it an ancient "blood feud" that's finally come out in the open. Is it all about ideology versus pragmatism or the best way to raise money?