This "at a glance" look at the primary in each State simply lists the winner (and, in many cases, the candidate who came in second) in each Primary in chronological order.
boldface followed by (inc) indicates the incumbent
|Tuesday 6 March 2018||Texas||O'Rourke||L||Hernandez||Cruz (inc)|
|Tuesday 8 May 2018||Indiana||Donnelly (inc)||U||Braun||41||Rokita||30|
|West Virginia||Manchin (inc)||L||Swearengin||Morrisey||35||Jenkins||29|
|Tuesday 15 May 2018||Nebraska||Raybould||L||Janicek||Fischer (inc)|
|Tuesday 22 May 2018||Texas||R||R|
|Tuesday 5 June 2018||California||Feinstein||44||de León||11||No Republican will be on the General Election Ballot|
|Top Two Primary|
|Mississippi||Runoff Sherman (32) v Baria (31)||Wicker (inc)|
|New Jersey||Menendez (inc)||L||McCormick||Hugin||L||Goldberg|
|New Mexico||Heinrich (inc)||U||Rich||U|
|Tuesday 12 June 2018||Maine||Ringelstein||P||Brakey||P|
|North Dakota||Heitkamp (inc)||U||Cramer|
|Tuesday 26 June 2018||Maryland||Cardin (inc)||Campbell||29||Chaffee||24|
|New York||Gillibrand (inc)||P||Farley||P|
|Tuesday 17 July 2018||Alabama||R||R|
|Thursday 2 August 2018||Tennessee||Bredesen||Blackburn|
|Tuesday 7 August 2018||Michigan||Stabenow (inc)||U||James||D||Pensler|
|Top Two Primary||Top Two Primary|
|Saturday 11 August 2018||Hawaii||Hirono (inc)||U||Curtis||24||Anderson||19|
|Tuesday 14 August 2018||Connecticut||Murphy (inc)||P||Corey|
|Minnesota Special||Smith (inc)||Housley||L||Anderson|
|Tuesday 21 August 2018||Wyoming||Trauner||P||Barrasso (inc)||L||Dodson|
|Tuesday 28 August 2018||Arizona||Sinema||McSally||N||Ward|
|Tuesday 4 September 2018||Massachusetts||Warren (inc)||U||Diehl||D||Kingston|
|Thursday 6 September 2018||Delaware||Carper||L||Harris||Arlett||L||Truono|
|Wednesday 12 September 2018||Rhode Island||Whitehouse (inc)||Flanders|
- If a candidate wins 75.5% or more of the primary vote, the second place finisher is not listed.
- U means that this candidate ran in the primary unopposed (that is, with no other candidates appearing on the ballot but him/her). Please note that write-ins do NOT count as such "other candidates on the ballot" but the appearance of "Uncommitted" (or equivalent, such as "None of the Above") on a ballot DOES.
- L indicates a landslide majority [60.5 to 75.4% of the primary vote] for the winner.
- D indicates a decisive majority [52.5 to 60.4% of the primary vote] for the winner.
- N indicates a narrow majority [50.0(+1 vote) to 52.4% of the primary vote] for the winner.
- Where a winning (or, in a runoff State, leading) candidate has failed to gain at least a majority of the primary vote, the winner(leader) of the primary and the candidate who came in second are both listed with their respective percentages of the primary vote rounded up or down to the nearest whole integer.
- C indicates the Party's nominee was chosen by a Party-run process other than the Primary (State Convention, Party Central Committee or equivalent).
- P indicates Primary cancelled / nomination by default because nominee was the only candidate to have filed for this Party's Primary for this office. P also applies to nominees-to-be by apparent Party consensus (i.e. no opposition at an ensuing Convention).
- R indicates any Runoff which has been scheduled for this date.
2018 General Election Outline
- 2018 General Election Home
- Popular Vote by Office
- Regarding Popular Vote Edge Cases
- 2018 Primaries and Runoffs for Statewide offices/Congress
- Alphabetically with Filing Deadlines
- Chronologically with Filing Deadlines
- Primary/Runoff/Special Elections Poll Closing Times (across time zones)
- General Election Poll Closing Times Alphabetically (across time zones)
- General Election Poll Closing Times Chronologically (across time zones)
- Polling Hours
- Primaries at a Glance
- Gubernatorial Primaries at a Glance
- Senatorial Primaries at a Glance
- Regarding Office Edge Cases
- Open Governor's Chairs, Senate and House Seats (the incumbent is not running for re-election)
- Governor's Chairs, Senate, and U.S. House Seats with no incumbent running for them
- Uncontested Governor's Chairs, Senate, and U.S. House Seats (one candidate running for office)
- Governor's Chairs, Senate, and U.S. House Seats with multiple incumbents running for them
- Governor's Chairs, Senate, and U.S. House Seats with only one major party candidate running for office
- 2018 Partisan Composition by State
- Political Parties
- Statewide Political Party Strength going into the 2018 Midterm Elections
- Relative Political Party Strength by SECTION and Region going into the 2018 Midterm Election
- Weighted Relative Political Party Strength by SECTION and Region
- 2018 Congressional Party Breakdown by Region
- 2018 STATE EXECUTIVE/LEGISLATIVE Political Party Breakdown by SECTION and Region
- Comparative Political Party Predominance in each State, 2000 thru 2016
- Political Party Floor Leaders in the Congress of the United States
- Dates of DIRECT PRIMARY Elections re: Major Party Nominations for Statewide and/or Federal Office
- Length of Terms of Office of STATE Governors throughout American History
- Downloadable data files