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Former Utah Gov. Jon Huntsman Jr. is hoping to do the same.

“There have been so many ups and downs in this race, I’m getting whiplash,” he said on ABC’s “This Week.” “We’ve had six front-runners.”

About his own campaign, which has zeroed in on New Hampshire, he said, “We’re going nowhere but up. In the weeks ahead, I do believe we’re going to move right up to the top of the pack.”

Meanwhile, Mr. Gingrich’s team tried to deflect the pressure to the Romney campaign. Gingrich campaign adviser Bob Walker called their rivals the “Romney Rottweiler group” on CNN.

“The fact is here that Newt continues to be a positive force in this campaign,” Mr. Walker said. “He continues to define the issues.”

Mr. Gingrich got some support from Sen. Lindsey Graham, South Carolina Republican, on NBC’s “Meet the Press.”

“I’m not going to endorse him, but I think he could beat President Obama,” said Mr. Graham, adding, “I think [the Republican Party] is in a good spot to win this election. It’s ours to lose.”

Mr. Graham called on Mr. Paul to endorse the GOP nominee, if he loses the primary, rather than run as a third party, because he has a strong following that could help knock off President Obama.

“The Ron Paul element of the party is real,” he said. “He has a lot of enthusiasm.”