Sanders, who caucuses with the Democrats in the Senate, said that he's not "actively right now organizing and raising money" for a campaign. But he added that he has been talking to people about it.
Sanders has been critical of Bill and Hillary Clinton, the latter of whom is viewed as the overwhelming frontrunner for the Democratic nomination if she runs in 2016. He told Time that, "if you talk about the need for a political revolution in America, it’s fair to say that Secretary Clinton probably will not be one of the more active people."
He told The Nation that he hasn't decided whether he would run as an independent or not. If Sanders does, he could present the Democratic nominee with a headache since his politics align much closer with the party than the GOP.