Witnesses with firsthand knowledge of Trump’s pressure campaign against Ukraine blew holes in the GOP’s already weak defense.

Rep. Adam Schiff says GOP lawmakers aren’t bothered by Trump’s alleged crimes, only that someone blew the whistle on them.

David Holmes’ testimony knocked down the GOP argument that Trump was deeply concerned about corruption in Ukraine.

What you should know about the testimonies released this week in the House impeachment inquiry.

A Russia expert on the National Security Council confirmed Trump withheld Ukrainian military aid to force an investigation of his political rivals.