A few tried and were soundly thumped by none other than John McCain.
http://www.freerepublic.com/focus/f-news/2908230/posts
http://www.frontpagemag.com/2012/robert-spencer/huma-abedin-and-the-muslim-brotherhood-bachmann-vs-mccain/
more from memory lane:
http://www.freerepublic.com/focus/f-bloggers/3189272/posts
There are holes in our national security system that are overlooked, that almost border on treason and not many of our congress critters care or even mention it — not even Cruz nor any of the GOP presidential candidates.