Vermont Sen. Bernie Sanders is one of two independents in the Senate. Now, the self-described socialist says he may run for president.
Sanders is aligned with Senate Democrats, but he has spoken lately of a problem with the Democratic coalition that elected President Obama. He says working-class white voters have abandoned Democrats in large numbers. The party, he says, has "not made it clear that they are prepared to stand with the working-class people of this country, take on the big money interests."