John,
Operation "Warp Speed" and the Abramham Accords were successful. Trump rolled back SALT, the tax deduction for state and property taxes, an overdue correction.
The downsides of the Trump Administration are enormous. The tragedy is that Biden did not correct most.
Trump reneged on the Iran nuclear agreement, which Biden dithered to and failed to restore. Trump removed America from the TPP (Trans-Pacific Partnership), which Biden failed to re-enter as a trade agreement. Trump initiated the American withdrawal from Afghanistan using diplomatic buffoonery, which Biden carried out oblivious to the opportunities for women in Afghanistan and the world. Trump intensified an adversarial relationship with China that has continued under Biden, harming American prosperity and security.
Trump set laid patterns that the following president continued -- a legacy we still can't shake.
Best.