Christie up 15 on Corzine in GOP firm's poll

A new poll from Republican firm Strategic Vision shows former U.S. attorney Chris Christie (R) growing his lead over New Jersey Gov. Jon Corzine (D).

Christie leads Corzine 53-38 in the new poll, which is up from 51-39 last month. The new margin mirrors a poll put out by the Republican Governors Association earlier this month but shows a slightly wider margin than more recent Quinnipiac (+12) and Monmouth (+8) polling.

There was some thought that perhaps Corzine was closing a bit following Christie's appearance before a congressional committee about a big contract he approved that went to his one-time boss, former Attorney General John Ashcroft. But Christie appears to be holding steady.

The newest poll includes 5 percent going for independent Christopher Daggett. President Obama's approval is at 50 percent, with 40 percent disapproving.

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