Romney's victories leave GOP leaders unimpressed
Paul trails with 46. Romney is still a long way from the 1,144 delegates needed to win the nomination, but he is the only candidate on pace to reach the magic number before the party's national convention in August.
At their current rates, Santorum and Gingrich won't reach even half the number needed.
To date, Romney has won 55 percent of the delegates available in primaries and caucuses; Santorum has won 24 percent, and Gingrich has won 14 percent.
The RNC has a total of 168 members - three from each state, the District of Columbia and five U.S. territories.
In some states, RNC members must support the winner of local primaries or caucuses.
The AP has identified 39 states and territories in which the RNC members will be free to support any candidate they choose.
That's 117 RNC delegates who will essentially be free agents at the convention.
A total of 2,286 delegates are slated to attend the Republican National Convention in Tampa, Fla.
The RNC delegates make up only 5 percent of them. But if Romney stumbles and can't amass enough delegates in primaries and caucuses, the RNC members would play an important role.
Jeff Berman, who ran Obama's delegate operation in 2008, said lobbying for the RNC delegates can be intense.
"Romney likely is telling the Republican superdelegates that he's going to be the nominee, get on board now and he'll always remember you were there when he needed you," said Berman, who recently wrote a book about Obama's 2008 campaign, titled "The Magic Number."
Santorum and Gingrich "more likely are saying vote for the candidate who is a strong conservative, who won your state and who will help get your base voters out in November to support your local candidates on the ballot," Berman said.
"This may be an effective pitch in those parts of the country where Romney is struggling." Romney's campaign made a public pitch this week that he is the inevitable nominee, calling Super Tuesday "our opponents' last stand."
Santorum has been trying to marginalize Gingrich, saying it's a two-man race and he's the man to solidify the anti-Romney vote.
Errol Galt, an RNC member from Montana who endorsed Romney on Tuesday, said he would like to see a quick end to the nomination battle.
"But this is the process we are in," Galt said. "It is going to take a lot of money if the primary is drawn out further."
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