The stakes over witness testimony at President Donald Trump’s impeachment trial are rising now that a draft of a book from former national security adviser John Bolton appears to undercut a key defense argument — that Trump never tied withholding of aid to Ukraine to a demand the country investigate rival Joe Biden..
Associated Press: Democrats demand Bolton testify at Trump’s impeachment trial
Former U.S. National Security Advisor John Bolton speaks at the Center for Strategic and International Studies Sept. 30, 2019 in Washington, DC.
