Senate Democrats now have the votes to push the "nuclear option"

From the Washington Post:

The aide says Reid believes he now has 51 Dem Senators behind a rules change, if it comes down to it. The Huffington Post reports that some Dem Senators who have previously opposed changing the rules — such as Barbara Boxer and Dianne Feinstein — are now open to it. “I believe that we are there,” the aide tells me. . . .