Hmmm:
Mitt Romney has been making a pitch for bipartisanship in the closing days of the race, and this morning rolled out an endorsement from Hillary Clinton’s former Senate state director, Gigi Georges: “For most of my life, I’ve been an active Democrat. I am proud to have worked for President Bill Clinton and then-Senator Hillary Clinton, and, during that time, I saw firsthand what can be accomplished by strong, bipartisan leadership. I know what it means to work across the aisle on issues that are important to the American people. And that’s why I am supporting Mitt Romney. Governor Romney has a plan to restore the prosperity this country deserves and expects. He will work with people of good will no matter what their party, and he will pursue the policies that are in the best interest of our country, no matter who proposes them. That’s what President Obama promised to do four years ago. But like so many of his promises, bipartisan cooperation is just another one he has broken. We can’t have four more years of failed policies and two parties that can’t work together. We need the change Mitt Romney is offering.”
Three possible explanations here: (1) Revenge (ahem) for the bruising '08 primary. (2) A genuine change of heart and belief in Mitt Romney's competent bipartisanship. (3) The 'rats off a sinking ship' effect. Take your pick.