Make a genuine guess…
I was hoping someone serious (versus the everything is AIPAC nutters) had put thought into it.
Rubio and Walz have been Iran hawks. But I’m not yet convinced they were unilateral. Instead, it looks like a Rice-Powell alignment of vague interests with enough groupthink that dissenters weren't in the room.
The current Israeli government obviously has a great deal of influence in the US government. That much is not conspiracy theory. The evangelicals involved in project 2025 have a very real interest in middle eastern conflict from an ideological standpoint. If you want a cynical follow the money villain look no farther than Al Saud and friends. Also, this weakens Russia and further restricts oil reaching China from anywhere. Every oil feed reaching China over water is at this point being curtailed. Looking for a single reason is very hollywood, enough interests aligned.
The US president hasn't required a new war resolution since Afghanistan. They each keep stretching it farther and farther. It cannot be rescinded without a veto-proof majority. If there was a veto proof majority willing to stand up to the executive, a conviction and removal would have already occurred.
The assertion that the US is a democracy is nisguided. It will be downgraded by vdem this month to an electoral autocracy. It is also worth noting that it only takes senators receiving the votes of <7% of the total population to filibuster all legislation, prevent overriding any vetos, and halt all impeachment trials. The fact it has looked like a democracy for so long is astounding.