New Jersey Gov. Chris Christie (R) will hold a press conference at 1 p.m. today, a spokeswoman says. He is expected to announce that he is not running for president.

New Jersey Gov. Chris Christie speaks during the Perspectives on Leadership Forum at the Ronald Reagan Presidential Library in Simi Valley, Calif., Tuesday, Sept. 27, 2011. Gov. Christie warned Tuesday that America's promise is being menaced from within, as a troubled U.S. economy, shaky leadership and political gridlock diminish the nation's ability to solve its problems. (AP Photo/Jae C. Hong) (Jae C. Hong/AP)

With Texas Gov. Rick Perry flailing in debates and sinking in polls, many Republicans have begged Christie to jump in. At the same time, a new Washington Post-ABC News poll suggests that Christie’s impact on the race would not be as large as expected.

Thirty-four percent of Republicans and GOP leaners in the survey said they preferred that Christie not run in 2012, while another 24 percent either didn’t know or had no opinion on the prospect of a Christie presidential bid.

If he had decided to run, Christie would have had to mobilize quickly. The new primary calendar, which is likely to push the first contest up to early January or even 2011, has made it even more difficult for a late entrant to develop the organization needed in early states.

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