To me, hanging out with a WANTED ISIL terrorist is a smoking gun.
U.S. Department of State’s Counter-Terrorism Rewards Program
https:// rewardsforjustice.net/english/abu_dua.html
http:// gotnews.com/yes-john-mccain-met-isis-allied-rebels/
https:// www.cbsnews.com/news/white-house-aware-mccain-met-with-syrian-rebels-before-trip
https:// www.reuters.com/article/us-syria-crisis-usa-mccain/senator-mccain-met-with-rebels-in-syria-spokesman-idUSBRE94Q0HU2013052