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PBS News Hour

'Need to Know' Explores Evangelical Voters' Sway Over GOP...

Four years ago, Arkansas Gov. Mike Huckabee beat Mitt Romney and the other GOP candidates in the Iowa Caucuses with strong conservative evangelical support led by a man named Bob Vander Plaats. "Need to Know" correspondent Rick Karr reports on the power of Vander Plaats and the religious right in the Hawkeye State's elections.
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