GOP lacks votes to block trial witnesses, McConnell concedes

President Donald Trump's lawyers have made their closing case for a speedy impeachment acquittal, but Republicans who heard hours of arguments signaled that they were not yet ready to block witnesses and bring the trial to a close

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.