Michael McFaul was a former US-ambassador to Russia from 2012 to 2014 became aware recently that he has been placed on the Kremlin's sanctions list and banned from entering the country. Russian news agencies reported that the ban was confirmed by Russia's foreign ministry. McFaul said the ban was because of his close "affiliation with Obama" oh his facebook page. However on his twitter he said it was "probably imposed in 2014 in response to US Sanctions". He became aware of this because he was preparing to visit Russia "to do Clinton transition work", this of course before Trump became the President-elect.