Transcript for Special counsel sends request for documents to Justice Department

That exclusive new reporting on the Russian investigation ABC news has learned that special counsel Robert Mueller is reaching. Into the de Justice Department asking for documents on president Trump's decision to fire FBI director James coming our senior justice correspondent Pierre Thomas. Is in Washington with that story force good morning here. Robin good morning while it continues to aggressively investigate apparently wanting to know more about the circumstance of calling fire. Not even the Justice Department and the attorney general are you mean. Special counsel Robert Mueller now turning to the Justice Department. As investigators dig into whether president trump or anyone else try to derail the our ongoing probe. Russian interferes into last year's election. Although he is not criticize Mueller recently. The president has not hidden his disdain for the Russia pro the entire thing has been a witch and ABC news has learned that in recent weeks Muller's team asked the Justice Department. Turn over emails and other documents relating to attorney general Jeff Sessions refusal from the rush investigations and president trump subsequent decision to fire combing as FBI director so far sessions has refused to publicly discuss. What trump told him about taxing comb. The Justice Department and the special counsel's office declined to comment with such as has said he will cooperate with the special counsel Robert. Impair learning that the publicists who set up that Don junior meeting with a Russian lawyer trump tower that publicists is ready to talk to Mueller and his team. That's right rob Goldstone told the Sunday times of these quote keen to talk. And put his recollection of the events on the public record. So that June 2016 needing a trump tower remains in focus. And Robin Jared Kushner who attended that meeting has recently been accused by senate leaders are withholding information about additional contacts with the Russians. But chris' attorney says he's cooperated fully. And Krista rejected additional offers a meeting with the Russians probably continues all right thank you Pierre.

This transcript has been automatically generated and may not be 100% accurate.