>> he says the meeting totally legal done all the time in politics but according to the e-mail that special counsel robert mueller has, this was a meeting to get information from the prosecutor of russia on hillary clin' hillary clinton's campaign. how is that legal? >> the question is how is it illegal? a meeting of that nature constitute a violation of the law? >> now critics have pounced on this, anna, suggesting that the president and his legal team are moving the goal posts despite calls for this investigation to wrap up by the president and his attorneys. we did get an indication last week that special counsel robert mueller is trying to zero in and get an interview with one of the key figures that was involved in that june 2016 meeting at trump tower. he's a russian pop star.