Ralph Nader buries Obama hopes

Ralph Nader has entered presidential race and launched an independent campaign for the White House yesterday. Nader, a high-profile consumer rights advocate who is 74 this week, ran as a third party candidate in 2000 and won almost 2.9 million votes. Nader said he is running because mainstream candidates are too closely tied to corporate America. What do Obama, Hillary, columnists and experts think about it? Read about reactions from the Democratic candidates on Sunday.