Will He or Won't He? John Bolton's Potential Testimony Hangs Over First Day of Questions in Trump's Impeachment Trial

https://time.com/5774160/bolton-testimony-trump-impeachment-trial/

Democrats drove at that point in their very first question, putting the focus squarely on Trump’s former National Security Advisor. “John R. Bolton’s forthcoming book states that the President wanted to continue withholding $391 million in military aid to Ukraine until Ukraine announced investigations into his top political rival and the debunked conspiracy theory about the 2016 election,” read the question by Chuck Schumer, a Democrat from New York, and posed to the House managers. “Is there any way for the Senate to render a fully informed verdict in this case without hearing the testimony of Bolton, Mulvaney and the other key eyewitnesses or without seeing the relevant documentary evidence?”