@dominykas @mattblaze POTUS has nominal authority over tariffs and immigration enforcement, as those are defined in the Constitution as Federal concerns. He ultimately controls the government structures doing those things.
Elections in the US are explicitly reserved (not 'delegated') to the States, which further delegate authority to counties and municipalities. No one in that hierarchy answers to POTUS.
His "demand" that states provide voter data to Federal authorities has so far failed.