By Dan Merica, CNN

Washington (CNN) – A group of conservative black pastors are responding to President Barack Obama’s support of same-sex marriage with what they say will be a national campaign aimed at rallying black Americans to rethink their overwhelming support of the President, though the group’s leader is offering few specifics about the effort.

The Rev. Williams Owens, who is president and founder of the Coalition of African-Americans Pastors and the leader of the campaign, has highlighted opposition to same-sex marriage among African-Americans. He calls this campaign “an effort to save the family.”

“The time has come for a broad-based assault against the powers that be that want to change our culture to one of men marrying men and women marrying women,” said Owens, in an interview Tuesday after the launch event at the National Press Club. “I am ashamed that the first black president chose this road, a disgraceful road.”

At the press conference, Owens was joined by five other black regional pastors and said there were 3,742 African-American pastors on board for the anti-Obama campaign.

When asked at the press conference for specifics about the campaign – funding, planned events and goals – Owens said only that the group’s first fundraiser will be on August 16 in Memphis, Tennessee. But Owens insisted that “we are going to go nationwide with our agenda just like the president has gone to Hollywood.”

In May, Obama announced on ABC News that he thought “same sex couples should be able to get married." The president had previously said that he opposed gay marriage, but said in May that his views were personal and did not represent a policy change.

In a fiery Tuesday press conference at the press club, Owens said Obama was taking the black vote for granted and decried the idea of similarities between the gay rights movement and the civil rights movement, an assertion made by the NAACP following Obama’s same-sex marriage support.

Owens has long been an opponent of gay marriage and consults with the National Organization for Marriage as a liaison to the black churches.

At the press conference, Owens said that Obama’s support of same-sex marriage tantamount to supporting child molestation.

“If you watch the men who have been caught having sex with little boys, you will note that all of them will say that they were molested as a child…” Owens said. “For the president to condone this type of thing is irresponsible.”

Owens later walked about those comments back, saying he didn’t think the president was condoning molestation.

Earlier this year, memos obtained by The Human Rights Campaign in a Maine civil actions suit revealed that NOM aims at making gay marriage a wedge issued “between gays and blacks,” according to the released confidential plans.

“The strategic goal of this project is to drive a wedge between gays and blacks - two key Democratic constituencies," one NOM memo states. In light of the release, Brian Brown, president of NOM, said that he is proud of the group’s “strong record” on minority partnerships.

A Pew Research Center poll conducted in April found that 49% of African-Americans oppose legalized same-sex marriage, compared with 39% who support it. But that shows a softening on the position in recent years; In 2008, only 26% of blacks were in favor of same sex marriage, according to the same Pew poll.

At the same time, black voters overwhelmingly supported Obama in 2008, while more recent polling shows a nearly equal level of support for the president’s 2012 reelection.

In a Public Religion Research Institute poll released last week, 18% of black Americans surveyed said they see same-sex marriage a “critical issue,” putting it behind the economy, education, deficit, a growing wealth gap and immigration.

According to Robert P. Jones, the CEO of the polling company, there is no evidence that same-sex marriage is something African-Americans will bring to the ballot box in November.

“Among African-Americans, I think same-sex marriage will be a nonissue in the election,” Jones told CNN. “We just have no evidence what so ever in slippage of support for Obama, even after his announcement in support of same sex marriage.”

The reaction of black pastors to the president’s support for gay marriage has been as varied as their congregations, ranging from condemnation to congratulations.

"We may disagree with our president on this one issue," Rev. Wallace Charles Smith said from the pulpit of the Shiloh Baptist Church in Washington on the Sunday after Obama announced his support for legalized gay unions. "But we will keep him lifted up in prayer. ... pray for President Barack Obama."

At the Tuesday press conference, Owens questioned Obama’s commitment to black Americans, stating that the president is just “half-black, half-white” and has long “ignored the black press.”

He is “ignoring the people that put him in the White House,” Owens said.