READ: Amendment to subpoena Trump aides for testimony in Senate impeachment trial

By CNN

CNN — Senate Minority Leader Chuck Schumer has unveiled a series of amendments on Tuesday to the organizing resolution setting the rules for President Donald Trump's impeachment trial.

The sixth amendment proposes subpoenaing Robert Blair -- a senior aide to acting White House chief of staff Mick Mulvaney -- and Michael Duffey -- the Office of Management and Budget associate director for national security programs.