Congress is the one who is supposed fix things by making long term policy instead of everyone relying on brash executive orders or the supreme court cleaning up messes. So it really is their responsibility most of all.
If history is any example we already know congress won't do much unless it involves spending money. We saw that with the republicans expanding ICE funding instead of making careful country wide immigration reforms in collaboration with state governments who are needed for proper enforcement. Most likely if/when the democrats win we'll see them fund a new flashy anti-corruption agency, which gets added on top of the other 400+ federal agencies who already have multiple overlapping responsibilities.
If history is any example we already know congress won't do much unless it involves spending money. We saw that with the republicans expanding ICE funding instead of making careful country wide immigration reforms in collaboration with state governments who are needed for proper enforcement. Most likely if/when the democrats win we'll see them fund a new flashy anti-corruption agency, which gets added on top of the other 400+ federal agencies who already have multiple overlapping responsibilities.