I don't know who was the first person to say "Don't get high on your own supply". Younger people may recall a version of this maxim from rapper Biggie Smalls 1997 song "Ten Crack Commandments". I'm not young so my reference point for the line is from the 1983 movie Scarface.
There are older sayings with similar meanings. H.P. Lovecraft in his 1927 horror novel The Case Of Charles Dexter Ward wrote the warning "Do not call up that which you cannot put down". Shakespeare's "Hamlet, written between 1599 and 1601, has the line "hoist by one's own petard" which warns of destruction by forces that the person has invoked.
Republicans should have remembered these warnings before the recent midterms. At this time there are a few races yet to be called. But there was no red wave. Democrats will keep control of the Senate. Republicans will likely take control of the House by a small margin.
With a few exceptions high profile Trump supported election denier Republicans lost. In Michigan, Republicans were shut out entirely. Michigan Democrats retained the offices of Governor, Secretary of State, and Attorney General, while taking the State House and State Senate.