In other words Khan waving the Constitution in our faces was just another Moslem con, which the news media bought hook line and sinker.
EXPOSED: Unhinged Trump Hater Khizr Khan Is A Muslim Brotherhood Agent Pushing Sharia, Immigration Jihad
The factual things they mentioned.... that Khan wrote a paper in defense of OPEC and, while living in Saudi Arabia, wrote an academic work about Islamic law and acknowledged the work of a Muslim Brotherhood member, and that he works as an immigration lawyer....can be conceded as true.
That he is a Muslim Brotherhood "agent" who primarily brings Muslims into the country, that he is a "plant" in Clinton's campaign, and any speculation about wanting to implement Islamic law in the U.S. is speculation. There is nothing to support it.
I can't disprove that Trump is an alien in human disguise, either. Doesn't mean it's true.