MSNBC's Chris Matthews appeared on The Colbert Report (in his hometown) last night, and received a grilling from Stephen Colbert over who had harder balls. But also, the interview served to reveal two bits of information; Sen. Hillary Clinton will be an upcoming surprise (until Matthews said it) guest on The Colbert Report and Matthews wants to be a senator from Pennsylvania, although he wouldn't commit to running in 2010. "I have to deal with these things as they come," he said: