"Mr. Christie's aides say the governor hasn't budged from his months-long insistence that he won't enter the presidential fray..."

"... despite what one described as a 'relentless' stream of calls over the last week from prominent Republicans urging him to run."

ADDED: Nate Silver on Christie's politics:

The ideology of governors can sometimes be hard to measure because they do not take roll call votes, as members of Congress do. But a method devised by Adam Bonica, a political scientist at Stanford, would infer that Mr. Christie was quite moderate based on the political orientation of his campaign contributors....

Here's another, less abstract way to think about the question. What positions has Mr. Christie taken that could potentially give him problems with the conservative base — as Mr. Romney’s stance on health care and Mr. Perry’s on immigration have?

There are actually quite a few of these....