[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2008/images/09/28/art.ap.obama.biden.detroit.jpg caption="Sens. Obama and Biden head to a Detroit rally Sunday."]
DETROIT (CNN) – Following a rally in Detroit with Barack Obama Sunday afternoon, Joe Biden will return home to Wilmington, Delaware to prepare for his Thursday night debate with Sarah Palin.
The Delaware senator’s schedule is blank until he flies to St. Louis for the debate, though he will head to Washington to vote on the bailout package when the vote is scheduled in the Senate.
Spokesman David Wade says the only preparation Biden has done up to this point is reading and talking to a wide range of colleagues, among them senators Hillary Clinton, Barbara Boxer and Dianne Feinstein.
Michigan Governor Jennifer Granholm will fly to Wilmington this week to play the role of Palin in sparring sessions with Biden. In a recent interview on NBC’s Today Show she said, “I want to beat him up a little bit, so he does well.”
Biden never talks directly about Palin on the stump, only in the context of the Republican ticket as a whole. He regularly tells audiences he doesn't know anything about her.
"I’m not being a wise guy," Biden told a laughing crowd Friday in Wisconsin, "I don’t know. I’m assuming she agrees with [McCain's] position. I’m being deadly earnest. I don’t know. I don’t know."
Biden will fly back to Delaware after the debate for his son Beau's deployment to Iraq on Friday as part of a Delaware National Guard unit. Beau Biden is Delaware’s attorney general. Palin's eldest son, Track, is also serving in Iraq.