White House confident John Bolton will not testify at Senate impeachment trial

White House officials are confident that President Trump’s former national security adviser John Bolton will not appear as a witness during a Senate impeachment trial.

Bolton threatened to upend Republicans’ careful strategy for a speedy trial on Monday when he announced that he was willing to testify if subpoenaed. He is one of a number of witnesses with direct knowledge of Trump’s actions toward Ukraine that Democrats believe could prove crucial in understanding the arc of events that led to impeachment.