Mitt Romney's announcement that
Wisconsin Rep. Paul Ryan will be his running mate dominated the week in political humor, but
Jimmy Fallon,
Jon Stewart,
David Letterman and the rest of the
Late Night TV hosts had no problem coming up with material on the would-be Vice President.While all the hosts had fun at Ryan's expense, the news that
Chris Christie will be the keynote speaker at the 2012 Republican National Convention prompted Letterman ...