Sen. Bernie Sanders and Democratic U.S. Senate candidate Graham Platner on a “Fighting Oligarchy” tour stop at the Collins Center for the Arts on the University of Maine campus on May 24, 2026 in Orono, Maine. Photo: Joe Raedle/Getty Images

Eoin Higgins is the author of “Owned: How Tech Billionaires on the Right Bought the Loudest Voice on the Left.”

One of the most enduring points of contention between the Democratic Party’s left and right wings is “vote blue no matter who,” a demand almost exclusively made of progressives to shelve principle over party when it comes to elections.

But as we head toward the midterms in a year where the base is angry and ready for a change, centrists are now hearing that familiar refrain aimed at them — much to their horror.

Rep. Jake Auchincloss, a Massachusetts Democrat, was confronted with this new reality earlier this week. He told CNN on Monday that he hoped Maine voters would reject Graham Platner, the state’s presumptive Democratic nominee for Senate, over his controversial tattoo, which Auchincloss called “personally disqualifying.” Critics quickly pointed out that the congressman was effectively offering a tacit endorsement of Sen. Susan Collins, the milquetoast moderate Republican incumbent who has for years infuriated Democrats.