White House Chief of Staff Rahm Emanuel had a special guest drop by the White House yesterday. SNL cast member (and Rahm impersonator) Andy Samberg got a tour of the West Wing. Asked whether Samberg would have a face to face with Emanuel, a White House aide said he didn’t know with whom the funnyman would be meeting. Columnist Maureen Dowd saw Samberg dining at Blue Duck Tavern over the weekend and helped arrange the visit. The Daily Caller’s blogging, “We can’t think of any reason why he would come to the White House just hours after Democrats passed the health-care bill, unless, of course, Rahm Emanuel is finally relaxed enough to see Samberg’s impression of him up close.