Here's my take on how the US could fix itself up,

• House expanded to 1 seat per state for every 50k permanent residents of that state, arranged in districts of no less than 5 and no more than 9 representatives allocated along municipal and zip code divisions, then along shortest split line divisions where that results in especially population packed districts.

• Senate expanded to 27 senators per state, 21 senators to every county level division with a larger population than any state, and 15 senators to every indigenous nation (even if they don't have a reservation) and labor union of 5,000 or more members.

• House elects the ministers of the executive, including the chief executive, as well as the next four "back-up" ministers who receive the same briefings as the minister themselves, Senate elects the president and shadow ministers to each department, again all who get the same info as the appointed minister.

• The "president" has the power to call the Senate to a veto vote on legislation that's passed the house, which has to pass by the nearest margin to the passing margin in the house rounded up.

• The "president" also gets the power of pardon still BUT the house can by simple majority veto any individual person in any given group of pardons, and can also veto awards presented by the "president"

• All elections take place every 4 years all at once, no primaries no divergent election years at state and municipal level no shorter term lengths, if it needs to be replaced more than every 4th year make it an appointed position, congressfolks are elected every 4th year, senators are elected every 12th to fit to the scheme.

• All elections are multi-seat STAR

• Drafts are banned unless in the case where the US is being directly invaded or legally considered to have been invaded via mutual defense treaty, and only if Congress and the Senate in a combined session vote to authorize it after 5% or more of available forces to the theater in question have been lost in a span of less than a month.

• Constitutional amendments have to be proposed and approved by different bodies, if the House and Senate jointly propose, the States have to approve, if the States propose, a national referendum has to approve, and if a national referendum proposed a combined session of the House and Senate has to approve, if the body proposing does so by simple majority, it has to be approved by a 2/3rds majority, and if it's proposed by a 2/3rds majority, it only has to pass by a simple majority to be approved.

• Not misinformation laws, but false expert laws, presenting of information as if you are an authority on a subject without possessing a license from the government or a nationally accredited organization of the experts you are accused of pushing yourself off as having the authority of or superior authority to. Would go a long way in going after fake medicine at least, if the US press ever formed a licensing organization it'd also allow prosecution of fake news outlets without actually posing a threat to press freedoms since the press itself can protect anyone by just granting them a license

• Adoption of IB education model nation wide, year round schooling, multi-teacher classrooms, and rotating classrooms, abolition of private education below the university level at least, and rotating teachers among all schools within commuting distance of them. Also, no funding schools with any local taxes, it all comes from the federal level, only thing that is allowed to change locally is the inclusion of indigenous language and culture classes specific to the local indigenous nations of the area.

• Not just locking Trump up, but establishing a specific trial process that deals entirely with illegal acts carried out by public officials that's rigidly built to be free of influence from anyone who could stand to benefit personally from the results of the trial going one way or the other. Also the same thing but for cops specifically and with undercover agents in the police.

I've got a whole bunch more of these