The Republicans will be hoisted by their own petard. I mean figuratively. There is but one Trump. He is on his second term. There is no heir apparent. No one of his disciples will inherit the throne. The seeds that the Republicans are sewing will be reaped. Wiser (Democratic) heads will prevail.

https://en.wikipedia.org/wiki/Hoist_with_his_own_petard "Hoist with his own petard" is a phrase from a speech in William Shakespeare's play Hamlet that has become proverbial. The phrase's meaning is that a bomb-maker is blown ("hoist", the past tense of "hoise") off the ground by his own bomb ("petard"), and indicates an ironic reversal or poetic justice.