investigation. >> you will hear from him and senators from both parties that are on a mission. this is in just moments. in the meantime this is how donald trump jr. is now defending the meeting he had more than a year ago with the russian lawyer on the promise of russian government information. >> in retrospect, i probably would have done things differently. to me this was opposition research -- >> cnn now has also learned that special counsel robert mueller plans to investigate that meeting and all of those e-mails. cnn reporters covering this from every angle as this story moves quickly. let's begin with cnn senior white house correspondent jeff zeleny and you have a lot of color out of the west wing directly this morning feeling paralyzed. >> reporter: good morning. there is a sense of dismay in certain quarters of this west wing of the white house largely because they had hoped this week was a chance to turn the corner