The benefit of people voting early is simple: Life happens, and the campaigns don't want any unforeseen events stopping their supporters from making it to the polls on Election Day.
"You wake up on Election Day, you might have a cold, babysitter gets sick, it's raining, the car broke down, I could go on -- toilet overflowing," said Michelle Obama in Wausau, Wis., on Friday. "
There are so many ways to mess up a day when you don't have a lot of time."
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