Possibly. Right now he's calculating the loss of MAGA support if we get anymore involved than we already are. We start dropping bombs support for Trump falls off a cliff. Impeachment is then on the table, which I would support under such conditions.
If Trump bombs Iran, then the US will be extremely busy bombing Iran. Then the US will be weakened significantly. THEN! Russia can focus on bombing whole of Ukraine, Poland, Moldova, Romania, Estonia, Latvia, Lithuania, Finland, Sweden, Norway, Germany, Hungary ..... AND! China can take over Taiwan, take revenge on Japan for Nanjing Rape, take over the whole of South China Sea ..... AND! The Arabs and Muslims will ..... So please continue with your Tariff War #2, not Bombing War.
As the military types say: "Every plan is good until you encounter the enemy because they get to have a say." Trump has put American warships/carriers in the region. If the Iranians fire on them it is highly likely that the Americans will shoot everything down as they do with the Houthis. And if so probably Trump will just tolerate that as though it like batting mosquitos down. Problem is, if, say, a carrier is hit and goes down with hundreds on board. It would be a lot to overlook in Trump's/Americans minds. American ships are already shooting down Iranian missiles.