Washington (CNN) - The latest 2012 GOP "will he or won't he" chatter has quickly moved from Donald Trump (won't) and Mitch Daniels (won't) to Rudy Giuliani (might). The Rudy Giuliani idea has many top Republicans throwing cold water on the notion, even as one prominent New York congressman says it could happen.
At a small dinner in Washington Monday night, Rep. Peter King, R-New York, told a group of journalists that he believed Giuliani would make a run for the White House.
The long time Republican congressman, who travels in many of the same New York political circles as Giuliani, said he has talked with the former New York City mayor and many of Giuliani's confidants of late and said Giuliani is seriously considering jumping into the race.
King said Team Giuliani has studied the mistakes of Giuliani's failed 2008 White House bid and wouldn't make the same mistakes again.
King said "it's all about New Hampshire" and if Giuliani runs, King expects to see him focus much of his attention on the Granite State. During the 2008 campaign, Giuliani was criticized for largely ignoring New Hampshire in favor of later primary contests, such as in Florida.
King also said Giuliani's campaign would be less likely to focus as heavily on national security this time around and would instead emphasize his economic accomplishments as mayor of New York.
A high-level Republican source who has talked to former Giuliani aides said Giuliani is speaking with former advisers and fundraisers about whether he should run, asking them "should I do it?"
The source said the answer has been a resounding no and that "some people think it's delusional of him to even ask." A second top Republican source said, "I'd be very surprised if he runs."
A Giuliani adviser told CNN that while his boss is considering a presidential bid, he is not taking active steps toward getting in the race other than making recent appearances in New Hampshire.
"He is considering it but that's not the same as running," the adviser told CNN.
Giuliani has visited New Hampshire twice this year and is expected back again next month. He polled at 6 percent in a CNN/WMUR survey of likely New Hampshire GOP primary voters released Monday, tied for fourth place with former Minnesota governor Tim Pawlenty.
Former Massachusetts governor Mitt Romney was ahead with 33 percent followed by Rep. Ron Paul at 9 percent and former House Speaker Newt Gingrich at 7 percent. The poll has a sampling error of plus or minus 5 percentage points.
While he hasn't ruled out another bid for the GOP presidential nomination, he hasn't taken any serious steps to date toward running.
Earlier this month Giuliani told a group from the Republican National Lawyers Association that he can "probably be talked into" a run for the presidency. But a few days later he admitted to CNN's Piers Morgan that "I haven't really decided or focused on it yet."
–CNN Chief Political Analyst Gloria Borger and CNN Political Reporter Peter Hamby contributed to this story