Virginia Republicans continued to call Friday for the ouster of Bob FitzSimmonds, treasurer of the state Republican party, after a provocative message on his Facebook page that questioned whether Muslim-Americans have made positive contributions to U.S. society.

Pat Mullins and Michael E. Thomas, the chairman and vice chairman of the state GOP, denounced the Facebook posting in separate statements and said FitzSimmonds should step down.

Micah Edmonds, the Republican candidate to succeed retiring U.S. Rep. Jim Moran (D-Va.), said FitzSimmonds “should be fired . . . for his insulting comments about Muslims.”

On Thursday, two top-ranking party officials told the Washington Post that FitzSimmonds had spoken with Mullins and offered to resign. But FitzSimmonds, who has not responded to repeated requests from the Post for comment, denied to a conservative blogger and on his own Facebook page that he made such an offer.

He remains state party treasurer, midway through an unpaid, four-year term.