It’s interesting to note that the two people who have generated the most fulmination out of Donald Trump have two things in common: neither of them are running for president against him, and they’re both women.

Sen. Elizabeth Warren (D-MA) cheerfully went after Mr. Trump and he went up like a Roman candle, hurling insults and racist nicknames back at her, much to her delight.  Now Supreme Court Justice Ruth Bader Ginsburg has ventured an opinion on him and Mr. Trump’s response is to question her sanity and demand that she be taken off the court.

No man, not even one running in the primaries, generated such vehemence and eye-popping, vein-throbbing responses.  Mr. Trump dismissed his male challengers much in the same way he sends back an undercooked steak.  But strong women really get under his skin — they always have, apparently — and when they stand up and give back as good as he gives, he’s a sight to behold.

I’ll leave it to the psychologists among you to come up with the reasons for this visceral behavior, but it really does make you wonder about what exactly it is about women that sets him off.

And now he has to run against one in the general election.