WASHINGTON — Conservatives are nearly resigned to seeing front-runner John McCain capture the Republican presidential nomination, but they are still debating whether to stay home in November or to try to influence his positions and choice of a running mate.

The Arizona senator, who has a long history of disputes over economic and social issues with his party's right flank, is beginning to reach out to those critics now that Super Tuesday voting has given him a commanding lead in the race for delegates and his chief rival, Mitt Romney, suspended his campaign

"He's got nine months to give birth to a conservative support group," said Cleta Mitchell, chairman of the American Conservative Union Foundation.

Mitchell spoke as party activists gathered at the Conservative Political Action Conference where McCain was pitching his candidacy to a skeptical audience in a Thursday afternoon speech.

McCain planned to tell the group he cannot succeed without their support and any differences within the GOP are eclipsed by his differences with Democratic presidential hopefuls Hillary Rodham Clinton and Barack Obama.

"It is my sincere hope that, even if you believe I have occasionally erred in my reasoning as a fellow conservative, you will still allow that I have, in many ways important to all of us, maintained the record of a conservative," McCain said in his prepared remarks.

The day before, a leading Christian conservative revealed that McCain had personally reached out to him.

The Rev. Jonathan Falwell — son of the late Rev. Jerry Falwell who made the religious right a political force when he helped found the Moral Majority in 1979 — said Wednesday that he had a telephone talk with McCain within the past 24 hours. Falwell, who succeeded his father as pastor of Thomas Road Baptist Church in Lynchburg, Va., said he wasn't ready to endorse a candidate but wanted to hear more from the Arizona senator on the issues.

"I look forward to seeing what McCain's plan is to unite the party," Falwell said, "and to see what he has to say in the coming days on the social agenda." He also expressed interest in hearing more from McCain on national security, the economy, Supreme Court nominees, and "how to protect human life and traditional marriage."

McCain's outreach to conservatives comes after he has garnered nearly 60 percent of the delegates needed for nomination. Although he hasn't locked up the nomination, he's won more delegates than rivals Mitt Romney, Mike Huckabee and Ron Paul combined.