“One critical issue was the meeting at Trump Tower on June 9, 2016, when the senior leadership of the Trump campaign, including Kushner, Manafort, and Donald Trump, Jr., met with a lawyer whom they had been told was a representative of the Russian government who had ‘dirt’ on Hillary Clinton. According to telephone records available to the [intelligence] committee, three days before the meeting Trump, Jr., made a series of calls. In the interval between one call from Russia and another to Russia on that day, Trump, Jr., spoke for three or four minutes to someone whose phone number was blocked. This raised the question of whether Trump, Jr., had advised his father of the planned meeting—which both the President and his son have long denied. Under Nunes, the committee declined to issue a subpoena to the telephone company to determine whether Trump, Jr., had been talking with his father. Schiff told me that, when he takes over the committee, one of his first orders of business will be to issue such a subpoena.

— Jeffrey Toobin in his article, ”Adam Schiff's Plans to Obliterate Trump's Red Line," in the Dec. 24/31 New Yorker