That didn’t work during his first term, twice, did it? I don’t think it will work this time, either. They were bogus charges, they couldn’t convict in the Senate. I also think that SCOTUS would uphold the decision to impound by striking down the anti-Impoundment act as unconstitutional for the stated reasons, Also there is a lot of precedent for impoundment going back to the beginning of the federal government. Jefferson even did it!!!! FDR did it!! It was a reasonable thing to do in many cases.