"abysmal mistake" makes it sound like this wasn't a considered action and willful disregard for both op-sec and the law. There is zero chance these guys didn't know what they were doing...
At minimum, Mike Waltz is retired special ops, Rubio has had high-level clearance for ages from his time in the Senate, same for Gabbard in the House. None of them responded "Hey, this is poor op-sec and illegal, perhaps take this to an approved messaging service?"
Im not defending anything here but i also know how unsophisticated executives are and these guys are for sure not technical savvy people. Normally handlers do all the orchestration. I mean it looks pretty clear they chose to work outside the standard operating channels.
At minimum, Mike Waltz is retired special ops, Rubio has had high-level clearance for ages from his time in the Senate, same for Gabbard in the House. None of them responded "Hey, this is poor op-sec and illegal, perhaps take this to an approved messaging service?"