= Democrat-held seat
= Republican-held seat
Nov. 27
Mississippi special Senate runoff (Results)
Senate
Past elections
March 6
Texas primary (Results)
Governor
Senate
House
March 13
Pennsylvania 18th District special election (Results)
House
March 20
Illinois primary (Results)
Governor
House
April 24
Arizona 8th District special election (Results)
House
May 8
Indiana primary (Results)
Senate
House
North Carolina primary (Results)
House
Ohio primary (Results)
Governor
Senate
House
Including 12th District special election primary
West Virginia primary (Results)
Senate
House
May 15
Idaho primary (Results)
Governor
House
Nebraska primary (Results)
Governor
Senate
House
Oregon primary (Results)
Governor
House
Pennsylvania primary (Results)
Governor
Senate
House
May 22
Arkansas primary (Results)
Governor
House
Georgia primary (Results)
Governor
House
Kentucky primary (Results)
House
Texas primary runoff (Results)
Governor
House
June 5
Alabama primary (Results)
Governor
House
California primary (Results)
Governor
Senate
House
Iowa primary (Results)
Governor
House
Mississippi primary (Results)
Senate
House
Montana primary (Results)
Senate
House
New Jersey primary (Results)
Senate
House
New Mexico primary (Results)
Governor
Senate
House
South Dakota primary (Results)
Governor
House
June 12
Maine primary (Results)
Governor
Senate
House
Nevada primary (Results)
Governor
Senate
House
North Dakota primary (Results)
Senate
House
South Carolina primary (Results)
Governor
House
Virginia primary (Results)
Senate
House
June 19
D.C. primary (Results)
Including D.C. mayoral race
June 26
Colorado primary (Results)
Governor
House
Maryland primary (Results)
Governor
Senate
House
Mississippi primary runoff (Results)
Senate
House
New York federal primary (Results)
Senate
House
Oklahoma primary (Results)
Governor
House
South Carolina primary runoff (Results)
Governor
House
Utah primary (Results)
Senate
House
June 30
Texas 27th District special election (Results)
House
July 17
Alabama primary runoff (Results)
House
July 24
Georgia primary runoff (Results)
Governor
House
Aug. 2
Tennessee primary (Results)
Governor
Senate
House
Aug. 7
Kansas primary (Results)
Governor
House
Michigan primary (Results)
Governor
Senate
House
Including 13th District special election primary
Missouri primary (Results)
Senate
House
Ohio 12th District special election (Results)
House
Washington primary (Results)
Senate
House
Aug. 11
Hawaii primary (Results)
Governor
Senate
House
Aug. 14
Connecticut primary (Results)
Governor
Senate
House
Minnesota primary (Results)
Governor
Senate
Senate
House
Vermont primary (Results)
Governor
Senate
House
Wisconsin primary (Results)
Governor
Senate
House
Aug. 21
Alaska primary (Results)
Governor
House
Wyoming primary (Results)
Governor
Senate
House
Aug. 28
Arizona primary (Results)
Governor
Senate
House
Florida primary (Results)
Governor
Senate
House
Oklahoma primary runoff (Results)
Governor
House
Sept. 4
Massachusetts primary (Results)
Governor
Senate
House
Sept. 6
Delaware primary (Results)
Senate
House
Sept. 11
New Hampshire primary (Results)
Governor
House
Sept. 12
Rhode Island primary (Results)
Governor
Senate
House
Sept. 13
New York state and local primary (Results)
Governor
Nov. 6
General election (Results)
About this story
Source: Associated Press
Independent incumbents who caucus with the Democrats are marked as Democrats. Races included in runoff elections are not marked, as that will depend on the result of the original election.
Originally published Dec. 28, 2017.
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