But is Donald Trump the only Biff in the room? Or is there another, quieter, subtler Biff, one who gets the joke a little more, and who likes to remind us that she’s just a kindly grandmother trying to help us all?

It’s telling that on Wednesday, when Joe Biden left the speculative presidential stage, he did so with a blatant dig at the current Democratic front-runner. “I believe that we have to end the divisive partisan politics that is ripping this country apart, and I think we can,” he said. “It’s mean-spirited, it’s petty, and it’s gone on for much too long. I don’t believe, like some do, that it’s naive to talk to Republicans. I don’t think we should look at Republicans as our enemies. They are our opposition. They’re not our enemies.”

In last week’s Democratic debate, of course, Hillary Rodham Clinton told the nation that Republicans—roughly half the nation, give or take—were enemies that she was proud to have, lumping them in with “the NRA, the health insurance companies, the drug companies, the Iranians.” Yowza, Biff. That’s kind of harsh. Now that I think about it, you also love government power. What are you going to do when you’re the boss?

“Back to the Future Part II” may have been a lot of things, but it was also a great reminder of the perils of unchecked power.