First, this does not included local state elections like Governor. The timing is just a coincidence if they occur during the Federal Elections.
Second, all U.S. House Representatives have midterm elections... they have two year terms.
Third, U.S. Senators have 6 year terms and state elections are staggered to avoid total reorganization confusion.
If you are a LIV (low information voter) vote in the Presidential Election and leave local and Midterms to the Political Science majors. In recent elections, about 60% of the voting eligible population votes during presidential election years, and about 40% votes during midterm elections.
informed me that we have One President, Two Senators from each state regardless of population, and a Representative for each state district (approximately 250,000 folks in each).
In lotto terms, your vote odds are 1 in 100 million for President, 1 in 5 million for Senator and 1 in 250,000 for Representative. These numbers are total SWAG. (Scientific Wild # Guess)
Your best odds for influence are local elections. Good luck. MAGA.