new in morning. exclusive reporting the tension in growing between special council in the russian investigation bob mueller and congressional investigators, all of this is a probe into the possible collusion between russian and president trump. and the campaign enters a new phase. our evan perez in washington breaking the news. it's interesting reading your reporting because it seems to be going both ways, mueller and his team seem -- of the congressional committees seem irked at his team. >> reporter: three investigations in h congress and one probe led buy robert mueller. it's probably predictable there would be complications. one such happened earlier when they asked for a transcript.