Here is some info on it:
http://dailycaller.com/2017/01/11/govt-source-confirms-trumps-lawyer-was-not-in-prague/
That article is from 01/11/2017!
Gov’t Source Confirms Man Who Was In Prague Was NOT Trump’s Lawyer
http://dailycaller.com/2017/01/11/govt-source-confirms-trumps-lawyer-was-not-in-prague/
I remember President Trump on camera saying the same thing back then. That was a big part of us all learning how craven Obama’s intelligence people had become.