His one FAILURE (IMO) was not getting the Wall built! Breaking that promise to America should prevent him from ever being reelected again
I agree, but I would add a few more failures to that. Yes Trump was one man but he had all the powers vested in the president of the United States. And we can see how easily those powers are being used by imposter Biden to destroy America. So there was no excuse as far as constitutional authority being an issue.
1. Trump failed to built a proper wall. He put up a fence instead, and all of it was not even completed. A solid concrete structure with a double layer (extending at least 50 ft above and 50 ft below ground level, and at least 20-30 ft wide), with 24/7 drone surveillance right along the entire border, was a necessity to block the underground tunnels of the cartels and to prevent the scaling of the fence. The wall should have had the capability of withstanding rocket propelled missiles (which the cartels have used in the past). This should have been an Army Corps of Engineers project under National Guard watch and military supervision. He could even have deployed soldiers to help build the wall since this was a national security issue. None of that happened.
2. He failed to fire all of the Obama holdovers and clean house within 30 days (like Biden has done in reverse). Then he failed to find proper patriotic and loyal people to head up his various departments. There were plenty to choose from, but he made bad hiring decisions over and over again from day one, then fired the rascals and replaced them with more rascals. Jeff Sessions should have been fired the day after he was hired for his betrayal. Perhaps Pence was a traitor all along.
3. He failed to set up a Special Independent Investigative Commission to root our election fraud from every state. The Democrats had complained about this during the last election, and this should have been one of the highest priorities, starting in 2017. And yet it was somehow totally neglected, with the result that the election was literally stolen by the Democrats. Now the Democrats want to set up a commission to investigate January 6 (which is simply a ploy).
4. Trump failed to veto all the ridiculous spending bills presented to him, since they were full of pork and dollars to the friends of Democrats (such as Planned Parenthood). In fact he should have presented his own lean and mean budgets first and ensured that they were honored.