This may sound crazy or naive, but I think people like us (who read this kind of article and discuss it online) can sometimes underestimate the number of reasonable, non-political jurors.
Sure, everyone knows who Trump is. Many of them probably voted for or against him. But even In Washington DC I think that out of millions of people, there are thousands of independent voters who aren’t that politically motivated. Finding people like this is what the jury selection is for. Once you remove people who state outright that they have prejudged the trial, you may still have people who try to conceal a partisan lean, but the attorneys on both sides will be looking closely to drop anyone who has attended a protest or has photos online in a politically messaged hat, and eventually I think they can absolutely identify a few dozen people who would say, ‘Do I have an opinion of the guy? Yeah, I think he did some stuff I like and didn’t like as president, but I didn’t feel strongly enough to vote in 2020, and I’m willing to hear both sides and try to give each a fair consideration.’
And that’s all you really need for a fair trial, imo.