One month after television and radio personality Glenn Beck convinced the National Rifle Association to launch an investigation into charges tax activist and NRA board member Grover Norquist is a secret sympathizer and promoter of radical jihadist agents associated with the Muslim Brotherhood in the United States, Norquist has "voluntarily suspended" himself from board activities.

Four weeks ago Beck waded into a 15-year-old dispute between Americans for Tax Reform President Norquist and Center for Security Policy President Frank Gaffney.

Gaffney has accused Norquist of being an "agent of influence" within several conservative organizations on behalf of the Muslim Brotherhood, a charge Norquist denies.

Interviewing Gaffney about Norquist and his bid for reelection to the NRA board, Beck asked, "Tell us how he is an agent of influence and what you're concerned about with the NRA."

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He continued, without giving Gaffney an opportunity to answer immediately.

"I will tell you I am so concerned about this, Frank, and I am not an expert on Grover Norquist by any stretch of the imagination. But I've heard enough that makes me concerned enough, and I hope the leadership of the NRA hears this and every member of the NRA hears this: If this man is re-elected and confirmed on the board, I may drop my membership in the NRA.

"I am that concerned that he is a very bad influence … If this is who the NRA decides to put on their board of directors, I don't think I can be associated with them."

See Beck's comments:

Gaffney noted that he was concerned that "influence operations on behalf of enemies of this country are continuing."

Beck's threat to leave the NRA resulted in listeners bombarding the NRA switchboard with hundreds of phone calls demanding Norquist be removed from the NRA board. Two days later, the group's vice president, Wayne LaPierre, announced an ethics investigation of Norquist.

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Despite the ongong investigation, Norquist was re-elected to the NRA board April 11, but subsequently "voluntarily suspended" himself from activities by the 25-member board activities "pending the outcome of the investigation," reported TheBlaze.com.

Gaffney's allegations began when his shared office space in Washington, D.C., with Norquist's Islamic Free Market Institute Foundation.

In 1999, Gaffney noted Norquist's group received a contribution or a loan of at least $20,000 from "a top Muslim Brother and al-Qaida financier," Abdurahman Alamoudi. Meanwhile, Alamoudi's "long-time and trusted deputy," Khaled Saffuri, was the founding executive director and subsequent chairman of Norquist's organization.

In October 2004, Alamoudi was sentenced to 23 years in federal prison after pleading guilty to participating in the financing of at least $1 million in al-Qaida-related terror activities.

Gaffney laid out his case against Norquist in a book now in its fourth edition, titled "Agent of Influence: Grover Norquist and the Right – Targeting the NRA," available as a free download on Gaffney's Center for Security Policy website.