"I am not part of whatever drug deal Sondland and Mulvaney are cooking up," Bolton apparently told Hill to tell the lawyers. 

It was not the first time Mr. Bolton expressed grave concerns to Ms. Hill about the campaign being run by Mr. Giuliani. "Giuliani's a hand grenade who's going to blow everybody up," Ms. Hill quoted Mr. Bolton as saying during an earlier conversation.

The testimony revealed in a powerful way just how divisive Mr. Giuliani's efforts to extract damaging information about Democrats from Ukraine on President Trump's behalf were within the White House. Ms. Hill, the senior director for European and Russian affairs, testified that Mr. Giuliani and his allies circumvented the usual national security process to run their own foreign policy efforts, leaving the president's official advisers aware of the rogue operation yet powerless to stop it. -NYT

When Hill confronted Sondland, he told her that he was 'in charge' of Ukraine, "a moment she compared to Secretary of State Alexander M. Haig Jr.'s declaration that he was in charge after the Ronald Reagan assassination attempt, according to those who heard the testimony," according to the Times.