<The Signal chat revealed the exact day and time of the attack

Sure.

That's why the Republican Senators involved in the national security committees aren't going along with the "nothing to see here"

There's not "nothing to see here" and that's not what I'm saying. This isn't the Big Thing That Brings Down the Trump Administration that the democrats are rending their garments over and fervently wishing it was. Many things went wrong: In no universe should you be able to add a random phone number into an app without extra authentication like with remote biometrics via a secured service. In other words even if somebody accidentally adds 867-5309 to the chat Jenny on the other end can't just join. That's the thing Wicker is (rightly) upset about.

As to the info, they've been running more strikes on the Houthis lately to step up their air campaign. You'd have more of a case if this was something happening out of the blue.

The Signal chat revealed mission critical information that should never have been transmitted in that unsecured commercial app.

Many things are wrong with this statement, but this thread has reached the talking past one another phase.