The vultures are starting to circle. Former White House  spokesman Bill Burton said that unless Obama can rally the Democratic base, which is disillusioned with him, "it's going to be impossible for the president to win." Democratic consultant James Carville had one word of advice for Obama: "Panic."

But there is good news for the president. I checked the Constitution, and he is under no compulsion to run for re-election. He can scrap the campaign, bag the fundraising calls and never watch another Republican debate as long as he's willing to vacate the premises by Jan. 20, 2013.

That might be the sensible thing to do. It's hard for a president to win a second term when unemployment is painfully high. If the economy were in full rebound mode, Obama might win anyway. But it isn't, and it may fall into a second recession - in which case voters will decide his middle name is Hoover, not Hussein. Why not leave of his own volition instead of waiting to get the ax?