Participants on a Signal group chat discussion about a strike on Houthi targets in Yemen are facing a lawsuit over a request to turn over all conversions they had on the encrypted app over the past three months.

The suit is the first filed since reporting indicating Defense Secretary Pete Hegseth discussed the same strike in a Signal chat with his wife, brother and personal lawyer.

The suit asks for the Signal messages from Hegseth and other top Trump officials, asking for the totality of messages in their accounts “regardless of sender or........

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