Term limits to end political dynasties. One and done.

I think that the problem you're really dealing with here is human ignorance. I'd love to change all kinds of things, but I don't think any of them would do any good until the people themselves understand what is happening to them. Therefore my change would be this:

That the people of the United States were informed of the ramifications of any legislative action. We need an objective media again. Information is the greatest weapon to combat bad ideas.

require that the first nickel of every federal dollar
spent be used to pay down the debt. . until debt is gone.
with a balanced budget required after that,
except for congressionally declared war, and then
the nickel rule re-engages when we win. -- j

I would fire every democrat politician in the nation and take my chances on the rest.

I'd make every institution, every committee, every panel, every elected official, every non-elected official in Washington fully transparent at all times, not just when an inquiry is made. Penalty for non compliance immediate and severe. It's a pity that such a thing would even need to enter the consciousness, but that is our present condition; the lack of honor among men.

Repeal the 16th Amendment. If the largesse of our current predicament could be tracked to a single event, it was this Amendment.

Contrary to popular belief, the 16th Amendment doesn't make Income Taxes legal. It was always legal from the beginning. The catch was that Income Taxes collected needed to be spent on everyone equally.

It's no coincidence that when the government could spend Income Taxes on whatever they wanted that things went nuts.

Execute every politician and bureaucrat and consultant acting upon government contract that in any way violates the original limited construction of the constitution. I don't care who gave the order, if you follow it against the 'law of the land', you die, and so does the chain of command above up to the origination of the order.
You are responsible for your actions that undermine or limit the liberty of the sovereign people.
Enough of this dancing to the tune of looters. They fulfill the contract made with the people or they die.