I am posting this here as a place to have these on record. Skip to the bottom for a summary.
In no particular order:
Most cabinet picks and other high positions will be approved by the Senate. Trump will have the Supreme Court, Senate, and a closely-divided House all in Republican control. And still he will not act on his “concept of a plan” for healthcare. Too many people benefit from the ACA for him to really mess with it.
He will push all of his people to ramp up deportations and the actual results will not come even close to his promise to deport millions of people. It will become clear that behind the scenes Greg Abbott, Ron DeSantis, and many wealthy GOP donors are lobbying Trump to be very selective in his deportations so that the building trades don’t grind to a halt.
Likewise, wealthy GOP donors and some Senators will push Trump hard to scale his tariff plan waaayyyyyyy back.
If Trump ignores their pleas and institutes widespread tariffs, prices (and inflation) will rise, unemployment will rise, and China and Russia will strengthen their alliance while the US loses even more global influence. The European Union will put some real distance between the US and EU and the US will be bargaining from an increasingly weak position.
The quality of the air and water in America will decrease as Trump loosens environmental regulations.
Trust in vaccines will plumet even further as RFK, Ladapo, Joe Rogan, and other fully unqualified people steer public health policy and discussions. Deaths of children from previously-controlled diseases will spike.
Likewise, maternal mortality rates will rise.
Women will be raped and assaulted at higher rates.
On the world stage, Vladimir Putin will feel emboldened to do whatever he wants to do—this will mean harsher crackdowns on any perceived dissent within Russia and more overt meddling in other countries.
Same is true for Netanyahu in Israel (if he manages to stay out of jail). He may feel empowered to annex parts of the West Bank and starve Gaza.
Christian Nationalists in the US will push as hard as they can to get Christianity into schools and other publicly-funded realms.
The Justice Department will see mass resignations as Trump uses it to punish anyone he sees as an enemy.
TL;DR. Inflation and unemployment will rise, most measures of public well-being will fall, America will lose much of our standing and power in the world. And though it all Trump will blame everyone but himself.