I don’t think Trump was directly involved in this law? We don’t need to invoke his name merely as an epithet.

It’s… just the common name for this way of getting things done (as far as I know at least). Propose something preposterous, so drama ensues and it gets watered down, but in the end you still get more than you would’ve otherwise.

I believe the term got popular around the time Trump got his wall by saying he was going to make Mexico pay for it. Suddenly nobody questioned the sanity of building a wall anymore, the entire narrative was about whether or not he’d get Mexico to pay.