Michele Bachmann CAIR

AP

The Council on American-Islamic Relations has slammed Rep. Michele Bachmann (R-Minn.) and others for calling for an investigation into whether the Muslim Brotherhood has infiltrated the United States.

(Related: Bachmann Hits Back at McCain, Critics Regarding Her Letter About Muslim Brotherhood and Its U.S. Tentacles)

CAIR spokesman Corey Saylor told ABC News questioning the loyalty of “patriotic American Muslims” is “beyond the pale.”

Bachmann, along with four other GOP House members, sent letters to the Office of the Director of National Intelligence and the Departments of State, Homeland Security, Justice and Defense demanding an investigation into whether longtime Hillary Clinton aide Huma Abedin’s family and other American officials have ties to the Muslim Brotherhood and are trying to promote the group within the government.

“America wants a serious national security conversation,” Saylor told ABC. “Michele Bachmann is giving us a six degrees of separation drinking game.

Sen. John McCain (R-Ariz.) strongly condemned the letter in remarks on the Senate floor Wednesday, calling the accusations “not substantiated by evidence,” and the allegations about Abedin — who is married to ex-Congressman Anthony Weiner — “sinister” and “ugly.”