Rove: GOP Candidates Must Use Momentum to Grab Undecided Voters

Republicans in tight races should use any momentum they have to pull in undecided voters, GOP strategist Karl Rove says.

Only a few Democratic or Republican voters will change their minds in an election, Rove told Fox News Channel's "On the Record with Greta Van Susteren" on Thursday. But in hotly contested races in Colorado and Iowa, where the GOP is leading, and North Carolina and New Hampshire, where the Democrats are leading, "there is the potential for it to flip."

In North Carolina, Democratic incumbent Sen. Kay Hagan leads by 1.6 percent in the Real Clear Politics average of polls, but 13 percent still are undecided. That leaves plenty of room for Republican Thom Tillis to use his momentum to beat her, Rove said.

"If you've got momentum, the only way to sustain it is to get those undecided voters moving in your direction," he said.

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