The United States needs to replace norms with laws. The system has been shown to be exceedingly vulnerable. Our only saving grace so far has been the incompetence and hubris of those exploiting the weaknesses for their own gain.
Time to seriously threat model the systems of checks and balances before a competent enemy of the US can take full advantage of them to the detriment of the world.
I'm not very hopeful we'll have leaders nor an electorate who can make this happen.