CNN’s Election Center uses pre-election race ratings for the Senate seats by , which provides nonpartisan analysis of campaigns for Senate, House and governor. This year, 35 of the 100 Senate seats were on the ballot.
House race ratings
CNN’s Election Center uses pre-election race ratings for all 435 House seats by , which provides nonpartisan analysis of campaigns for Senate, House and governor. Every two years, all 435 House seats are on the ballot. Heading into the election, Democrats controlled 220 out of 435 US House seats, while Republicans controlled 212 Seats, with three vacancies.