Here's one, poorly formatted, cannot find the PDF but will look.
There are probably thousands of Republican politicians who have received help from Grover Norquist at one time or another, and that does not make them Islamist sympathizers. As for the CAIR stuff, I'd need to read more about it, but it does appear to be more troubling (IF that website is telling the truth, which is not necessarily so given its alarmist report on Schundler having ties to Norquist).
I must reiterate that this is all very surprising to me given Schundler's close relationship of many years with the State of Israel (in fact, when I first read about Schundler, I assumed he was Jewish because of his many ties to Israel).