MICHAEL BALSAMO and MARY CLARE JALONICK
Associated Press
WASHINGTON (AP) — Republicans brought House Democrats' impeachment investigation to a halt on Wednesday as around two dozen GOP House members stormed into a closed-door deposition with a Defense Department official. Democrats said the move compromised national security as some of them brought electronic devices into a secure room.
The GOP maneuver delayed a deposition with Laura Cooper, a senior Defense Department official who oversees Ukraine policy, until midafternoon. The interview began roughly five hours behind schedule, after a security check by Capitol officials.
As a series of diplomats have been interviewed in the probe, several of them detailing President Donald Trump's efforts to persuade Ukraine to investigate a po
