Even though the presidential election is still over a year away, the race is heating up as to which Republican could challenge President Obama for the office of Leader of the free world.   Obama is known for being a great campaigner and smooth at the podium, but there was a time when he wasn't as slick as he is now.  Here's a few highlights from his run for the White House.   Let me apologize in advance that Chris Matthews and Keith Olberman are also in this clip.