Sports metaphors are ubiquitous in politics, so its fair to say John McCain threw one low and inside today - attacking Barack Obama over baseball.

The issue is no small matter, given how both the 2008 presidential campaign and the 2008 major league season have evolved. The fast-approaching World Series pits the Tampa Bay Rays against the Philadelphia Phillies, much-beloved teams from two hotly contested battleground states that both campaigns are desperate to win.

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