While Trump-endorsed Republicans went 5-0, and the three far-left Democrats who had been endorsed and garnered personal appearances by Socialists Bernie Sanders and Alexandria Ocasio-Cortez all lost, the margins were tighter than they otherwise might have been — should have been — simply because Republicans managed lower primary voter turnout percentages than Democrats in Ohio, Kansas, and elsewhere.
So an objective, neutral mainstream press would have been justified in offering some "advice for November" to Republicans, as well as Democrats. (Unfortunately, we no longer have a "Mainstream Press" that even bothers to pretend to such neutrality. Nor can I tell you when we really ever did, since even when we were young we saw them knowingly cover for a John F. Kennedy with known health, drug, and fidelity problems. The playboy senator was lionized as the "handsome, witty young man playing touch football on the beach," while his opponent Dick Nixon — no matinee idol, true, but surely better prepared for the intricacies of the Cold War — was widely portrayed as a rat climbing up out of the sewer. The only real change is that now it's about 20 times worse.)