"I'd vote for him all over again. ... I think he's got the same vision about America I do. ... I think he has the same social goals, very much, that I do," Politico reported.

But as lawmakers keep sparring over tax cuts on Capitol Hill, Buffett said that he thinks it's "almost a cinch that they will be extended for the people - I don't know if it'll be exactly [making less than] $250,000, or whatever the number may be, in the end."