I guess he's in his right mind after all! I realized that even folks smart enough to go into space could still be nuts, but I guess this one came to his senses just in time to avoid stepping blindly out of an airlock to the cold, sucky vacuum of the Liberal Party of Canada.
He didn't like the idea that "leader" Stephane Dion was going to be personally choosing who gets to run, rather than allowing a democratic nomination vote to decide.
Smart guy. Get out before it ruins you.
I only wonder why on earth (or in the entire universe!) this guy, with all his brains, thought the Liberal Party might be a good place to be. Oh, well, even astronauts have brainfarts, as we well know from a recent controversy involving another astronaut going nuts...