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Perry tries to 'rally Iowa caucus-goers' with ad

According to Perry's campaign, the video release does not include an ad buy on Iowa television but is intended for use by Iowa activists. The video, titled "Win Iowa," is aimed directly at likely Republican caucus-goers.

"As we've traveled across the state, I've been humbled by your dedication. From cafes, town halls and churches, we've talked about our kids' future," Perry says in the ad. "I'm honored to have your support on January the third."

Perry is delivering closing arguments in Iowa as he concludes his two-week bus tour of the state. Perry's numbers have improved in the state. He took fourth place with 14 percent in Friday's NBC News-Marist poll.

Iowa caucuses are Jan. 3.