I said it before, and I'll say it again: the U.S. dollar needs a 10:1 revalue to undo the rampant inflation that's gone on the past few decades. That'd cut the deficit from $1 trillion to 🆕$100 billion.
But that's just the first step, of course. This country can't continue spending $4 for every $3 that comes in forever. It's going to have to stop spending so much AND start getting more money into the coffers. And some of that is going to have to come from the 40% or so that isn't paying income tax at all, especially the 20% that gets more from the government than they pay in.
But the latter part, that has virtually no support.