Bernie Sanders is determined to fight on for the Democratic nomination despite another whooping by Joe Biden in the “Big Tuesday” primaries. He’s welcome to pray for a miracle turnaround, but the voters have made their preference plain.

Partly, it’s that Democrats just want to beat President Trump, and they see Biden is the better man for that: Bernie’s support for the Castros, to cite just one example, all but guarantees he’d lose swing-state Florida in November.

But this also looks like a rejection by most voters of the Sanders agenda — namely, a truly revolutionary increase in the size and scope of the federal government — at least for this year.

The Vermont socialist still hopes to sell his case, vowing to challenge Biden in Sunday’s first one-on-one presidential debate on climate change, college affordability, health care and poverty. Good luck with that.

As for Bernie’s demand that Joe offer plans “to end the absurdity of billionaires buying elections,” all Biden needs to do is point to the failure of Mike Bloomberg and Tom Steyer in this year’s primaries.

Sanders’ obsessive ideology wins him plenty of fans — but nothing like a majority, and that’s not going to change.