ERIC TUCKER, ZEKE MILLER and LISA MASCARO
Associated Press
WASHINGTON (AP) — Senators faced mounting pressure Monday to summon John Bolton to testify at President Donald Trump's impeachment trial even as Trump's lawyers brushed past extraordinary new allegations from Trump's former national security adviser and focused instead on corruption in Ukraine and historical arguments for acquittal.
Outside the Senate chamber, Republicans grappled with claims in a forthcoming book from Bolton that undercut a key defense argument — that Trump never tied withholding military aid to Ukraine to his demand that the country help investigate political rival Joe Biden.
The revelation clouded White House hopes for a swift end to the impeachment trial, fueling Democratic demands for witnesses and po
