Do you have first hand info can share from being at some of briefs or debriefs? I have none.
Just enter Grover Norquist, and/or Grover Norquist Muslim or Islam in the search bar in the upper right hand corner of the FR opening page, and a bunch of articles will come up. I had seen one or two article as I signed on, but looked for more, and that is my source. Of course, you could also Google the same topics.