reveal media bias!

ELKHART, Ind. (AP) - Barack Obama taunted Republican presidential rival John McCain on Wednesday for first ridiculing him for advising voters to keep tires inflated and then later acknowledging that the practice saves gasoline. "It will be interesting to watch this debate between John McCain and John McCain," Obama said as he campaigned in Indiana with Sen. Evan Bayh, widely considered a top-tier candidate for running mate. Discussing the air-pressure issue during an appearance Tuesday night, McCain said he wasn't opposed to Obama's suggestion. "And could I mention that Senator Obama a couple of days ago said that we ought to all inflate our tires, and I don't disagree with that. The American Automobile Association strongly recommends it, but I also don't think that that's a way to become