Anyone who is not a moron (the entire GOP base), knows that world economics control oil prices. Trump has no direct control over oil prices. Biden has no direct control over oil prices. Now, the POTUS can enact policies that help or hinder industries that do have a more direct say in oil prices, but the POTUS has no direct control.
A major part of oil prices is the terrorist organization known as OPEC. They are a cartel. They purposely reduce oil production to keep prices high. That is collusion.
The big oil consumption nations such as the US and China also control oil prices. The US economy is going strong, but China's economic stagnation is helping to keep gas low.
China's recent oil finds (some of it is shale oil which is hard to extract), can only help keep oil prices in check in future years as well.
One thing we can do is we can pivot to increased renewables, that will help as well. The goal of renewables creates a cycle where we create minimal pollution going forward. And also creates a situation where we rely less and less on fossil fuels. And that's one example where the POTUS's policies designed to help renewables can help affect oil prices long term.
I hate calling it green energy because everything requires causes some pollution. At the very least on the manufacturing side, things like metals and rare earth elements need to be dug up and refined, and that usually takes water and energy and can create toxic byproducts. The goal of renewables is to make sure we can contain any waste byproducts, whether it is making it inert, or storing it somehow, and also to make sure the materials we use can be recycled.
We're never going to be completely removed from fossil fuels. at least not any time soon, and I doubt we will move away from it in our lifetimes, but if we can drastically reduce our fossil fuel usage, the environment will be better, global warming will lessen, and we will not be at the mercy of a foreign nation. I will never understand the GOP opposition to renewables, since it can only strengthen our nation's independence.