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OTTER CREEK, IA- NOVEMBER 6:   A man puts on his "I Voted" sticker after voting at a polling station on November 6, 2012 in Otter Creek, Iowa. U.S. citizens go to the polls today to vote in the election between Democratic President Barack Obama and Republican nominee former Massachusetts Gov. Mitt Romney.  (Photo by Mark Hirsch/Getty Images)
OTTER CREEK, IA- NOVEMBER 6:   A man puts on his "I Voted" sticker after voting at a polling station on November 6, 2012 in Otter Creek, Iowa. U.S. citizens go to the polls today to vote in the election between Democratic President Barack Obama and Republican nominee former Massachusetts Gov. Mitt Romney.  (Photo by Mark Hirsch/Getty Images)

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It's time for mandatory voting in U.S.?

Erin Burnett asks whether a new regulation could change the way Americans vote - forever.

It's time for mandatory voting in U.S.?

Erin Burnett asks whether a new regulation could change the way Americans vote - forever.