Congressional Republicans are grappling with how to respond to senior Trump administration officials’ use of a Signal group chat to discuss a military strike, with a key Senate committee requesting a watchdog probe of the matter as some in the GOP say there’s no need for further investigation.

The Pentagon inspector general's office will investigate Defense Secretary Pete Hegseth's use of commercial messaging app Signal to discuss air strikes on Yemen, the watchdog said Thursday. The probe will evaluate the extent to which Hegseth and other defense personnel complied with "policies and procedures for the use of a commercial messaging application for official business,

The independent watchdog said it would assess whether the defense secretary followed department policies when he shared military strike plans in a group chat.