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2018 United States elections

elections in the United States in 2018

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 11, 2026
Entity authorityQ7892468
Source-derived summary

Elections were held in the United States on November 6, 2018. In these midterm elections, which occurred during incumbent Republican President Donald Trump's first term, all 435 seats in the U.S. House of Representatives and 35 of the 100 seats in the U.S. Senate were contested to determine the 116th United States Congress. The Republican Party increased its majority in the Senate. Democratic incumbents and challengers vastly outperformed Trump's margin in Republican-leaning states, and unified Republican control of Congress and the White House was brought to an end when the Democratic Party won control of the House of Representatives. In what was widely characterized as a blue wave election, Democrats also gained governorships, other statewide offices, and state legislative chambers.

Democrats made a net gain of 40 seats in the United States House of Representatives, gaining a majority in the chamber and thereby ending the federal trifecta that the Republican Party had established in the 2016 elections. The Republican Party retained control of the United States Senate, making a net gain of two seats and defeating four Democratic incumbents in states that had voted for Trump in 2016. As a result of the 2018 elections, the 116th United States Congress became the first Congress since the 99th United States Congress (elected in 1984) in which the Democrats controlled the U.S. House of Representatives and the Republicans controlled the U.S. Senate. In state-level elections, Democrats picked up a net of seven governorships and several state legislative seats.

This was the first time since 1970 that one party gained Senate seats while losing House seats, which had also occurred in 1914 and 1962, and would go on to also happen in 2020, 2022, and 2024 as well.

Editorial summary

Begin with the source’s own compact description: “2018 United States elections” is elections in the United States in 2018. The dossier treats that line as a proposition to test through United, States and elections, not as a finished interpretation.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current lead gives the account dated anchors—2018, 2016, 1984, 1970—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, United, States and elections is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “elections in the United States in 2018” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 11, 2026. The linked authority identifier is Q7892468. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2018, 2016, 1984 and 1970.

Critical limits

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Source & attribution

This entry incorporates text from 2018 United States elections” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.