The Des Moines Register found Democrat Hillary Clinton and Republican Paul Ryan are leading the pack of potential candidates.
According to the poll, 88% of Democrats think Clinton should run. Half the adults polled think it's a "good idea" for the former Secretary of State to run again. 67% of Republicans say it's "a good idea" for Ryan, the 2012 Vice Presidential nominee, to run for President this time.
Former Arkansas Governor Mike Huckabee was close behind with 65%.
Iowa holds the first presidential contest of the primary and caucus season.
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