Congressional Stakes
The elections involve all 435 seats in the US House of Representatives and 35 of the 100 Senate seats.
- House of Representatives: The current Republican majority is thin, holding 218 representatives—the exact number needed for control—plus one independent who votes with them.
- Senate: To win an outright majority, a party needs 51 seats. If the chamber is split 50-50, the vice-president holds the tie-breaking vote.
According to the Cook Political Report, seven Senate races are considered toss-ups: Alaska, Kansas, Iowa, Maine, Michigan, Ohio, and Texas. Of these, six are currently held by Republicans and one by Democrats.