Author: STEPHEN COLLINSON, CNN

New twists put Republicans on spot in impeachment saga

Washington's impeachment battle over President Donald Trump's conduct with Ukraine is intensifying with news of a second whistleblower while new testimony this week brings the prospect of more stunning revelations to deepen the crisis.

Mueller's big moment is make or break for Democrats

Democrats are pinning their last, best hopes of proving that President Donald Trump committed impeachable crimes on former special counsel Robert Mueller who is set to reluctantly serve as a star witness in Wednesday's televised spectacle.