Trump appears to be single-handedly deciding to use an old aircraft carrier launch system over the Navy’s preference. He doesn’t seem to have a good reason to do this.
Trump wants to force a currently constructed carrier that plans on using an electromagnetic launch system back on the old steam system. The new system should have higher up-times, launch planes faster, have the ability to launch heavier planes, have the ability to launch lighter planes, and have simpler support systems. Trump’s decision appears to make no sense on the surface, but, the Navy’s test of the new system has not been released to the public, and while the Navy said good things about the test, they could be misleading or lying.
Anyone who followed Iran a little bit knew that Iran was likely to close the Strait of Hormuz. The Navy knew that US bases anywhere near Iran and the Strait would have minimum use because the US can’t stop enough Iranian drones and missiles. The Navy also knew that this would put difficult logistic pressures on supplying carriers in a conflict that wasn’t real quick. Yet, there seems to have been completely inadequate preparation for this logistics. This is because the president was convinced by the Secretary of Defense, Israel, and his own foolishness that the Strait would not be closed and the conflict would be quick. The problems we are seeing are partly due to a lack of preparation for a long conflict, even though that was a likely outcome and the president should have known this.
The US does not have enough servicing ships to keep US fighting ships supplied. This was okay when the US operated near land bases, but with Iranian missiles and drones making many US bases unusable, the US has trouble keeping its ships supplied.
The US does not have enough military ships either because the ships need time for repairs and the crews need time off, so the navy actually needs an extra ship or two for every two in military operations. While two are doing operations, one is in repairs and rest. War-level operations, including blockade, are 24/7 work that degrades sailors’ capabilities without rest.
Long-term military containment with ships escorting oil tankers through the Strait may be the best among bad options. Future congresses and presidents would need to maintain it though, and it would be expensive.