With a conservative POTUS and congress, a major area of action should be the reorganization of the federal judiciary. The constitution requires the supreme court, but all subordinate courts are created and changed by congress. So a chairman of the house and senate judiciary committees can correct a huge number of problems.
1) Among other things, the reorganization should be used to purge a whole lot of really awful federal judges. They will have to be paid until they retire, but it doesn’t mean they will sit before civil and criminal cases, because their courts will no longer exist as such. No reason in the world to “laterally transfer” radicals and deadwood to new jobs.
2) A huge number of obstacles and obstructions can be swept away from federal involvement in state capitol punishment cases. Just by declaring states to be “competent authorities” in carrying out executions as they see fit, removes hundreds of reasons for appeal.
For the time being, states should authorize the use of the firing squad as an alternative to any other contested means of execution. That is, fine, you challenge lethal injection, so we will shoot you instead. Your challenge is instantly moot. Legally, it is much harder to challenge a firing squad, it is inexpensive, can be carried out anywhere, cannot be denied essential materials, requires no special training for the lawmen who pull the triggers, and is well established that it works.
I doubt that would be constitutional. 14A prohibits any state from violating a citizen's rights. Such a claim can only be adjudicated in federal court.