GOP defends Trump as John Bolton book adds pressure for witnesses

Senators faced mounting pressure Monday to summon John Bolton to testify at President Donald Trump's impeachment trial even as Trump's lawyers mostly brushed past extraordinary new allegations from the former national security adviser and focused instead on corruption in Ukraine and historical arguments for acquittal.

'Bogus' Ukraine theory led to Trump's abuse, Democrats claim

Democratic House prosecutors made an expansive case Thursday at Donald Trump's impeachment trial that he abused power like no other president in history, swept up by a “completely bogus” Ukraine theory pushed by attorney Rudy Giuliani.