so happy together

Clinton and Obama played nice in last night's debate, which was marked by politeness and civility. Why? Because they feel one of them will win in the fall. Both candidates can afford to be civil. There is a lot more anxiety on the Republican side, evidenced by the vitriolic arguments over conservative credentials: niceness is a luxury that neither Romney nor McCain can afford. The Democratic dawn meets the Republican decline? Or is it? I worry the Democrats are over-confident.