If Republicans retain control of the House in November, Trump will (correctly) claim victory and vindication. He will have beaten the political performances of Bill Clinton and Barack Obama in their first midterms. He will have proven the electoral value of racial and ethnic stereotyping. He will have demonstrated the effectiveness of circus-like distraction. He will have shown the political power of bold, constant, uncorrected lies. And he will gain many more enablers and imitators.