Trump Impeachment Trial: The Battle Over Witnesses Reaches Tipping Point

The battle over whether witnesses should testify at President Donald Trump's  impeachment trial is at fever pitch and it's getting more brutal as this phase of the trial nears its end. Democrats are demanding witnesses be allowed to share their information directly with the Senate on matters members might need more information or clarification on. But Republicans believe witness testimony could open a back door for new arguments in what they see as a tight case for Trump's acquittal.