Washington (CNN) Sen. Susan Collins sent a written note early Wednesday morning during President Donald Trump's impeachment trial minutes before Chief Justice John Roberts admonished both legal teams, a source with knowledge of the event tells CNN. It is unclear if the note from Collins, a Maine Republican, led directly to Roberts' comments, or had specific language for him, but the note came shortly before the chief justice spoke. The note was sent as House Judiciary Chairman Jerry Nadler, a Democrat from New York, spoke and appeared to accuse senators of a "cover-up." It is not clear what the conversation between the two was about, but Roberts addressed the Senate at 12:55 a.m. Sen. Susan Collins of Maine, at right, walks with Sen. Dan Sullivan of Alaska to the Senate chamber at the Capitol on Wednesday.

Source: CNN January 22, 2020 23:48 UTC