Earlier this year, the anti-Muslim right seized upon an entirely unverified claim by disgraced former FBI agent John Guandolo that John Brennan, the Director of the CIA, had secretly converted to Islam as part of a Saudi Arabian "counterintelligence operation against him to recruit him."
There was absolutely no evidence to support the assertion other than Guandolo's say so, but that didn't matter as it immediately became a widely believed "fact" among people like Bryan Fischer who, to this day, continues to openly repeat it as if were verifiable and true.
On his radio broadcast this afternoon, Fischer cited another totally untrustworthy story claiming that President Obama would be meeting with high-ranking Muslim Brotherhood officials, which then prompted him to boldly declare that "John Brennan is a Muslim ... He's a devout Muslim, he's a die-hard Muslim, he believes what Muslims believe" despite having literally no evidence to support that claim whatsoever: