Barack Obama has been in Washington less than a year, but our junior senator already has a Hollywood superstar -- known for his own political passions -- talking up a future Obama presidential bid. George Clooney told the Sunday Times of London he understands Obama's reluctance to even talk about a run for the White House this early in the game. ''Of course he doesn't want to right now; he just wants to be a senator for Illinois,'' said Clooney, who clearly has heard Obama's continual mantra: ''I just want to be a workhorse [in the Senate], not a show...