There has been horrible. There has been corrupt. There has been despicable. But this one takes the cake for the most ridiculous...

"In a presidential memorandum... Trump ordered the Navy to remove the Electromagnetic Aircraft Launch System (EMALS)... and instead use the older steam powered catapults that system replaced... Trump has long fixated on steam catapults... His reasoning is unclear — but appears to simply stem from his inability to understand how EMALS works."

https://truthout.org/articles/trump-spending-billions-to-revert-aircraft-carriers-to-steam-catapults/