G.O.P. Candidates Criticize Slur by Conservative Author

WASHINGTON, March 3 — Three of the leading Republican presidential candidates on Saturday denounced one of their party’s best-known conservative commentators for using an antigay epithet when discussing a Democratic presidential contender at a gathering of conservatives here.

The remarks by Ann Coulter, an author who regularly speaks at conservative events, were sharply denounced by the candidates, Senator John McCain of Arizona, Rudolph W. Giuliani of New York and Mitt Romney of Massachusetts. Their statements came after Democrats, gay rights groups and bloggers raised a storm of protest over the remarks.

Speaking at the Conservative Political Action Conference before an overflow crowd on Friday, Ms. Coulter said, “I was going to have a few comments on the other Democratic presidential candidate John Edwards, but it turns out you have to go into rehab if you use the word ‘faggot,’ so I — so kind of an impasse, can’t really talk about Edwards.”

Mr. Edwards’s aides responded with an e-mail message that attacked Ms. Coulter and urged supporters to donate to Mr. Edwards’s campaign. “John was singled out for a personal attack because the Republican establishment knows he poses the greatest threat to their power,” said his campaign manager, David E. Bonior. “Since they have nothing real to use against him, Coulter’s resorting to the classic right-wing strategy of riling up hate to smear a progressive champion.”

Ms. Coulter, asked for a reaction to the Republican criticism, said in an e-mail message: “C’mon, it was a joke. I would never insult gays by suggesting that they are like John Edwards. That would be mean.”

At the conference, she said she was likely to support Mr. Romney.

The criticisms by the Republican candidates put them in a difficult position because the Conservative Political Action Conference has been gathering for conservative and Republican leaders for over 25 years.