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Nate Silver @NateSilver538
@SeanTrende @asymmetricinfo I think it's hard to disaggregate (1) sleep, exercise or eating routines often being disrupted during travel days and (2) days before/after travel often being quite busy (if it's a business trip, I have to be more "on" than usual, it's tiring) from the rigors of travel itself. — PolitiTweet.org