Information on states held by a party opposite the winning 2016 presidential candidate
A list of race ratings
Information on historical wave elections
Contents [hide]
1 Partisan breakdown
2 Seats up for election
3 Battleground elections
3.1 Seats that changed party hands in 2014
4 Outside ratings
5 Fundraising by candidate
6 Fundraising by party
6.1 Democratic Senatorial Campaign Committee
6.2 National Republican Senatorial Committee
7 Filed candidates by political party
8 Incumbents not seeking re-election in 2020
8.1 Historical comparison
9 Presidential election data
10 Special elections
10.1 Historical special election data
10.1.1 Special elections, 2013-2020
10.1.2 Special elections, 1986-2012
11 Annual Congressional Competitiveness Report, 2020
12 Congressional approval rating
13 Noteworthy events
13.1 Supreme Court vacancy, 2020
14 Important dates and deadlines
15 Ballot access requirements
16 Wave elections
17 See also
18 External links
19 Footnotes