It's likely about midterm elections. Iran is extremely unpopular and if Trump can't protray some semblance of control over the situation, then Republicans are toast.
Once elections are secured, they'll go right back to doing Israel's bidding. Israel's money controls DC.
The real signal is this. Trump is not breaking ranks with Israel. He's binding us...
The floggings will continue in due time.
https://www.military.com/2027-ndaa-provision-seeks-sweeping-us-israel-defense-tech-integration