Strange situation there.
A president with no credibility telling us Iran's doing it.
A president with no credibility to lead us into a war or to finish one.
No confirmation from anyone who does have credibility, whether they're military or allies.
No backing from any allies except two whose lifelong ambitions are to start a war with Iran.
No backing from Congress.
It's still perfectly reasonable to say "IF Iran is behind it" as well as "You know, this wouldn't have happened if you hadn't pulled out of the nuclear agreement."
It's still perfectly reasonable to think that Saudi Arabia, Israel, one of the factions in Yemen or another party is behind it.
And Americans. Don't. Want. A. War. Especially one started on false or mistaken pretenses.
Don't look at me, I just work here.