2018 United States elections
| Mid-term elections | |
| Election day | November 6 |
|---|---|
| Senate elections | |
| Seats contested | 33 seats of Class I |
 | |
| Map of the 2018 Senate races Dem. incumbent undeclared Dem. incumbent running Rep. incumbent undeclared Rep. incumbent running Ind. incumbent running No election | |
| House elections | |
| Seats contested | All 435 seats to the U.S. House in the 116th Congress |
| Gubernatorial elections | |
| Seats contested | 39 (36 states, 3 territories) |
 | |
| Map of the 2018 gubernatorial races Democratic incumbent eligible for re-election Term-limited or retiring Democrat Republican incumbent eligible for re-election Term-limited or retiring Republican Independent incumbent eligible for re-election No election | |
The 2018 United States elections will mostly be held on Tuesday, November 6, 2018. These midterm elections will take place in the middle of Republican President Donald Trump's term. All 435 seats in the United States House of Representatives and 33 of the 100 seats in the United States Senate will be contested. 39 state and territorial governorships and numerous other state and local elections will also be contested.
Federal elections
Congressional elections
Senate
All 33 seats in Senate Class I will be up for election. Additionally, special elections may be held to fill vacancies in the other two Senate Classes.
House of Representatives
All 435 voting seats in the United States House of Representatives will be up for election. Additionally, elections will be held to select the Delegate for the District of Columbia as well as the delegates from U.S. territories, with the exception of the Resident Commissioner of Puerto Rico, who serves a four-year term.
State elections
The 2018 state elections will impact the redistricting that will follow the 2020 United States Census, as many states task governors and state legislators with drawing new boundaries for state legislative and Congressional districts.
Gubernatorial elections
Elections will be held for the governorships of 36 U.S. states and three U.S. territories. Special elections may be held for vacancies in the other states and territories, if required by their state/territorial constitutions.
Legislative elections
Most states will hold state legislative elections, although Louisiana, Mississippi, New Jersey, and Virginia do not hold legislative elections in even years. Kansas, Minnesota, New Mexico, and South Carolina will only hold elections for the lower house. In states that use staggered terms, some state senators will not be up for election.
Table of state, territorial, and federal results
This table shows the partisan results of Congressional, gubernatorial, presidential, and state legislative races held in each state and territory in 2018. Note that not all states and territories hold gubernatorial, state legislative, and United States Senate elections in 2018; additionally, the territories do not have electoral votes in American presidential elections, and neither Washington, D.C. nor the territories elect members of the United States Senate. Washington, D.C. and the five inhabited territories each elect one non-voting member of the United States House of Representatives. Nebraska's unicameral legislature and the governorship and legislature of American Samoa are officially non-partisan. In the table, offices/legislatures that are not up for election in 2018 are already filled in for the "after 2018 elections" section, although vacancies or party switching could potentially lead to a flip in partisan control. New Jersey and Virginia will hold gubernatorial and legislative elections in 2017.
| Subdivision and PVI | Before 2018 elections[1] | After 2018 elections | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Subdivision | PVI[2] | Governor | State leg. | US Senate | US House | Governor | State leg. | US Senate | US House | |
| Alabama | R+14 | Rep | Rep | Rep | Rep 6–1 | |||||
| Alaska | R+9 | Ind | Rep | Rep | Rep 1–0 | Rep | ||||
| Arizona | R+5 | Rep | Rep | Rep | Rep 5–4 | |||||
| Arkansas | R+15 | Rep | Rep | Rep | Rep 4–0 | Rep | ||||
| California | D+12 | Dem | Dem | Dem | Dem 39–14 | |||||
| Colorado | D+1 | Dem | Split | Split | Rep 4–3 | Split | ||||
| Connecticut | D+6 | Dem | Split | Dem | Dem 5–0 | |||||
| Delaware | D+6 | Dem | Dem | Dem | Dem 1–0 | Dem | ||||
| Florida | R+2 | Rep | Rep | Split | Rep 16–11 | |||||
| Georgia | R+5 | Rep | Rep | Rep | Rep 10–4 | Rep | ||||
| Hawaii | D+18 | Dem | Dem | Dem | Dem 2–0 | |||||
| Idaho | R+19 | Rep | Rep | Rep | Rep 2–0 | Rep | ||||
| Illinois | D+7 | Rep | Dem | Dem | Dem 11–7 | Dem | ||||
| Indiana | R+9 | Rep | Rep | Split | Rep 7–2 | Rep | ||||
| Iowa | R+3 | Rep | Rep | Rep | Rep 3–1 | Rep | ||||
| Kansas | R+13 | Rep | Rep | Rep | Rep 4–0 | Rep | ||||
| Kentucky | R+15 | Rep | Rep | Rep | Rep 5–1 | Rep | Rep | |||
| Louisiana | R+11 | Dem | Rep | Rep | Rep 5–1 | Dem | Rep | Rep | ||
| Maine | D+3 | Rep | Split | Split R/I[a] | Split 1–1 | |||||
| Maryland | D+12 | Rep | Dem | Dem | Dem 7–1 | |||||
| Massachusetts | D+12 | Rep | Dem | Dem | Dem 9–0 | |||||
| Michigan | D+1 | Rep | Rep | Dem | Rep 9–5 | |||||
| Minnesota | D+1 | Dem | Rep | Dem | Dem 5–3 | |||||
| Mississippi | R+9 | Rep | Rep | Rep | Rep 3–1 | Rep | Rep | |||
| Missouri | R+9 | Rep | Rep | Split | Rep 6–2 | Rep | ||||
| Montana | R+11 | Dem | Rep | Split | Rep 1–0 | Dem | ||||
| Nebraska | R+14 | Rep | NP | Rep | Rep 3–0 | NP | ||||
| Nevada | D+1 | Rep | Dem | Split | Dem 3–1 | |||||
| New Hampshire | Even | Rep | Rep | Dem | Dem 2–0 | Dem | ||||
| New Jersey | D+7 | TBD | TBD | Dem | Dem 7–5 | |||||
| New Mexico | D+3 | Rep | Dem | Dem | Dem 2–1 | |||||
| New York | D+11 | Dem | Split | Dem | Dem 18–9 | |||||
| North Carolina | R+3 | Dem | Rep | Rep | Rep 10–3 | Dem | Rep | |||
| North Dakota | R+17 | Rep | Rep | Split | Rep 1–0 | Rep | ||||
| Ohio | R+3 | Rep | Rep | Split | Rep 12–4 | |||||
| Oklahoma | R+20 | Rep | Rep | Rep | Rep 5–0 | Rep | ||||
| Oregon | D+5 | Dem | Dem | Dem | Dem 4–1 | Dem | Dem | |||
| Pennsylvania | Even | Dem | Rep | Split | Rep 13–5 | |||||
| Rhode Island | D+10 | Dem | Dem | Dem | Dem 2–0 | |||||
| South Carolina | R+8 | Rep | Rep | Rep | Rep 6–1 | Rep | ||||
| South Dakota | R+14 | Rep | Rep | Rep | Rep 1–0 | Rep | ||||
| Tennessee | R+14 | Rep | Rep | Rep | Rep 7–2 | |||||
| Texas | R+8 | Rep | Rep | Rep | Rep 25–11 | |||||
| Utah | R+20 | Rep | Rep | Rep | Rep 4–0 | Rep | ||||
| Vermont | D+15 | Rep | Dem | Split D/I[b] | Dem 1–0 | |||||
| Virginia | D+1 | TBD | TBD | Dem | Rep 7–4 | |||||
| Washington | D+7 | Dem | Split | Dem | Dem 6–4 | Dem | ||||
| West Virginia | R+20 | Rep | Rep | Split | Rep 3–0 | Rep | ||||
| Wisconsin | Even | Rep | Rep | Split | Rep 5–3 | |||||
| Wyoming | R+25 | Rep | Rep | Rep | Rep 1–0 | |||||
| United States | Even | Rep | Rep | Rep | Rep | Rep | ||||
| Washington, D.C. | TBD | Dem[c] | Dem[c] | — | Dem | — | ||||
| American Samoa | — | NP | NP | Rep | NP | NP | ||||
| Guam | Rep | Dem | Dem | |||||||
| N. Mariana Islands | Rep | Split | Ind | |||||||
| Puerto Rico | PNP | Split | PNP/R | PNP | PNP/R | |||||
| U.S. Virgin Islands | Ind | Dem | Dem | |||||||
| Subdivision | PVI | Governor | State leg. | US Senate | US House | Governor | State leg. | US Senate | US House | |
| Subdivision and PVI | Before 2018 elections | After 2018 elections | ||||||||
Notes
- ^ One of Maine's Senators is a Republican, the other (Angus King) is an independent who has caucused with the Democrats since taking office in 2013.
- ^ One of Vermont's Senators is a Democrat, the other (Bernie Sanders) was elected as an independent but has caucused with the Democrats since taking office in 2007.
- ^ a b Washington, D.C. does not elect a governor or state legislature, but it does elect a mayor and a city council.
References
- ^ "State & Legislative Partisan Composition (2016 Election)" (PDF). National Conference of State Legislatures. Retrieved January 4, 2016.
- ^ Wasserman, David. "Introducing the 2017 Cook Political Report Partisan Voter Index". Cook Political Report. Retrieved May 1, 2017.