He always referred to “Trump and his supporters”. By implication, he was not among “his supporters”.
Rush is still stuck in 80’s dogma. Trump is remaking conservatism into a winning party again.
A lot of the Never Trumpers, and people like Rush, have a Dogma of Conservationism. They have this world view of a perfect Conservatism. Problem is there are not enough voters to elect a perfect Conservative. They have created this myth of “Reagan the Perfect Conservative”. Reagan was far from perfectly Conservative in fact.
So when they are confronted with the realities of politics they hem and haw and equivocate because it does not fit their perfect political dogmas.