The billionaire Democrat-turned-Republican-turned-independent mayor toyed with a third-party run in 2008 but ultimately abandoned the idea. He has said unequivocally he won’t run in 2012, but during a forum at Harvard University on Monday he endorsed the idea of an independent in the White House.

“I think actually a third-party candidate could run the government easier than a partisan political president because the partisan political president – yeah he’s got half the votes, but he can’t get the others – whereas the guy in the middle may very well be able to get enough across the aisle,” Bloomberg said.