Trump returned to that theme in November 2022, when he officially launched his 2024 presidential campaign. "We're going to be asking everyone who sells drugs, gets caught selling drugs, to receive the death penalty for their heinous acts," he said.
You'll note there are comments here saying saying that he generally keeps his campaign promises. On the bright side I don't agree, but on the other hand I think he does often enough, especially for the "well of course he didn't literally mean that" ones.