there was no need to call more witnesses - Really?...
Trump gave the instruction, Mr. Bolton wrote, during an Oval Office conversation in early May that included the acting White House chief of staff, Mick Mulvaney, the president’s personal lawyer Rudolph W. Giuliani and the White House counsel, Pat A. Cipollone, who is now leading the president’s impeachment defense.
As you probably know, the Trump admin is now doing everything they can to prevent John Bolton's book from being released. Why?