Disclosure: There's been a whopping setback in my 2008 commitment to less TV, more fitness and fresh air. First, the Olympics. Now, the Democratic and Republican conventions. Soon, the campaign debates. I try to multitask and monitor the news channels while pedaling my recumbent bike, but that's awkward when we have guests.

Following presidential politics is part of a healthy lifestyle, if you can stand the aggravation. I can, because I think it's crucial to have people in power who ha ...

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