YouTube plays party politics: CNET News Video
CNET News Video: YouTube plays party politics4:29 /
During the presidential campaigning four years ago, YouTube didn't even exist. Now it's a tool candidates must master to get their message across. CNET's Kara Tsuboi stops by the YouTube upload booths at the Democratic and Republican conventions to find out why Google's video site has such a big presence in Denver and St. Paul, Minn.