John Roberts could call witnesses to Trump’s trial, but will he?
Neal K. Katyal, Joshua A. Geltzer and Mickey Edwards write: An overwhelming number of Americans, including a majority of Republicans, believe the Senate should hear from relevant witnesses and obtain documents during President Trump’s impeachment trial. Striking new revelations about the president’s role in the Ukraine affair, as reported from an unpublished manuscript by John Bolton, underscore the need for his testimony and that of others. Yet Republican members of the Senate have signaled that they intend to uphold Mr….