It was barely a split decision, with Barack Obama winning by 14 points in North Carolina and Hillary Clinton by less than two points in Indiana. Today, her campaign conceded that even Florida and Michigan might not provide the delegates she needs. Both Bill and Hillary Clinton started their political careers in the presidential campaign of former Senator George McGovern in 1972. Today McGovern switched his support to Obama and urged Clinton to drop out of this year's contest. McGovern said Obama has won "by any practical test." Clinton cancelled morning appearances on network television, but she's been loaning her campaign more money, and today she made an appearance in West Virginia. Is race the remaining argument for Clinton's "electability?" Would Obama need a new kind of coalition to win in November?