Barring a political miracle, the party will next year have a new member of Congress, Darializa Avila Chevalier, who, the day after the worst massacre of Jews since the Holocaust, celebrated the event in Times Square. Another probable future representative, Claire Valdez, vowed on July 4 to “fight for liberation from Palestine to Puerto Rico.” A would-be U.S. senator, the Michigan Democrat Abdul El-Sayed, offered an alternative take on Michelle Obama’s famous line about going high when your opponent goes low: “When they go low, we don’t go high,” he said. “We take them to the mud and choke them out.” (El-Sayed is a doctor.) In Wisconsin, a democratic socialist, Francesca Hong, is the polling favorite in the race for the Democratic nominee for governor; in 2021 she said that “police exist to uphold white supremacy” and should be abolished; more recently, she has said her “perfect world would be a world without prisons.”

Against this tide, the position of many mainstream Democrats is to dodge the ideological fight with the left while warning that, outside of deep-blue districts like those in New York City, democratic socialism is an electoral loser that only provides Trump with political ammunition. In Michigan, Haley Stevens, El-Sayed’s opponent in the Democratic primary, is campaigning on the argument that “no one wants Abdul to win more than the Republicans” — that is, that Republicans see him as the more beatable opponent come November.

I remember the same case being made by mainstream conservatives against Trump when he was running in 2016: A vote for him in the Republican primary, so the argument went, was tantamount to a vote for Hillary Clinton in the general election. Then he won.

What mainstream Republicans like me missed then is what I fear mainstream Democrats miss now: that ideas older voters know have long been discredited (“America first” among conservatives; socialism among progressives) can seem fresh and appealing to younger voters; that even middle-of-the-road voters still often prefer the most extreme or uncouth candidate on their side to the most moderate candidate on the other; and that policy positions ultimately count for less than sheer charisma, the aura of being a “fighter,” even if you accomplish little of substance.

All this is especially true when the more ideologically extreme candidates are energetic, unstuffy, authentic, and able to stir up an audience. Zohran Mamdani, the New York mayor, is emblematic of the type; so was Graham Platner, the Maine Democrat, at least until allegations about his past behavior finally caught up with him.