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Especially troubling for Republicans is that only one-third of self-described independents in the latest Des Moines Register poll said they planned to vote in a Republican caucus, compared to two-thirds who expected to participate on the Democratic side. While somebody has to be a registered Democrat to vote in that party's caucus, voters can change their registration on caucus night.
No matter what the outcome of the nomination battle, Democrats are so hungry to take back the White House that they'll rally around whichever candidate triumphs.
For Republicans, it isn't that simple. At this point in time, it's difficult to see how any Republican candidate can emerge from the messy nominating process to unify the party.