https://www.siliconvalley.com/2019/12/23/mcconnell-not-ruling-out-witnesses-in-impeachment-trial/

PALM BEACH, Fla. — Senate Majority Leader Mitch McConnell said Monday that he was not ruling out calling witnesses in President Donald Trump’s impeachment trial — but indicated he was in no hurry to seek new testimony either — as lawmakers remain at an impasse over the form of the trial by the GOP-controlled Senate.

The House voted Wednesday to impeach Trump, who became only the third president in U.S. history to be formally charged with “high crimes and misdemeanors.” But the Senate trial may be held up until lawmakers can agree on how to proceed. Minority Leader Chuck Schumer is demanding trial witnesses who refused to appear during House committee hearings, including acting White House chief of staff Mick Mulvaney and former national security adviser John Bolton.