“Insanity” is doing the same thing over and over, and expecting different results.
“Psychosis” is doing the same thing over and over, ONLY HARDER, and demanding different results.
The actions I've been seen being taken by the present administration and the Nancy Pelosi/Chuck Schumer cabal certainly seem to no longer fit the first definition and have been slipping closer to the second. Therein lies the problem.
(H/T DBD commenter rickn8or)