Bolton’s willingness to testify in Trump’s impeachment trial ramps up pressure on Senate Republicans

John Bolton scrambled Senate Republicans’ impeachment strategy on Monday, declaring his willingness to testify and upping the pressure on Senate Majority Leader Mitch McConnell and his party to summon the former national security adviser as a witness in President Trump’s trial.

Bolton last fall rebuffed House impeachment investigators’ entreaties to testify about his concerns about Trump’s demands that Ukraine investigate his political rivals as the administration delayed military aid. Bolton’s surprise announcement complicated the political calculus for McConnell’s no-witness strategy and appeared to increase the likelihood of additional testimony that...