Secretary of Defense Pete Hegseth just told Iran that they had been warned not to aid the Houthis any longer that they were about to suffer the consequences:

Message to IRAN: We see your LETHAL support to The Houthis. We know exactly what you are doing. You know very well what the U.S. Military is capable of — and you were warned. You will pay the CONSEQUENCE at the time and place of our choosing.

Welp, there goes the Iranian nuclear negotiations. GOOD!