Pre-election Overview
In the 2018 U.S. midterm elections there are 35 of 100 Senate seats and all 435 House of Representatives seats up for reelection.
Currently Democrats hold 49 seats in the Senate and Republicans hold 51. In the House Democrats currently hold 193 seats and Republicans hold 235. Democrats need a net gain of 23 seats to take control of the House.
Going into the election there are 15-20 competitive/battleground seats in the Senate and 75-80 competitive/battleground seats in the House.
View info and maps of all Senate races here and here.
View info and maps of all House races here and here.
View a forecast of all the Senate races on the FiveThiryEight (538) website here.
View a forecast of all the House races on the FiveThiryEight (538) website here.
In addition, 36 of 50 states will hold elections for governor (gubernatorial elections), about 20 of which are considered competitive/battleground seats.
View info and maps of all state gubernatorial races here and here.
Finally, 37 of 50 states have ballot measures (155 measures in total).
View info for all the state ballot measures here.
- 7 things to watch on Election Day | The Hill
- These 12 races will be key to who controls the Senate after the 2018 midterms | USA Today
- The top Senate seats most likely to flip | The Hill
- The 10 most important Senate elections, briefly explained | Vox
- 2018 Midterm Elections: House Races to Watch Right Now | The New York Times
- Top House races to watch on election night | CBS News
- These 25 Congressional races to watch are some of the most competitive in the 2018 midterm elections | Business Insider
- Final House Ratings: 75 Competitive Races, Ten Rating Changes | The Cook Political Report
- Key governor races will shape America's future politics | Reuters
- Will billionaire Tom Steyer's big bet on young voters pay off in midterm election? | Los Angeles Times
- TRUMP OWNS THE BLOODY CROSSROADS OF AMERICAN POLITICS | Fareed Zakaria
Senate Election Results
The table below shows the election results of all the competitive/battleground seats in the Senate. The "RCP Avg" column shows the average polling spread (winning percentage) of all the major polls taken just prior to the election as reported on the Real Clear Politics website. The "Actual" column shows the actual election results spread. Note that some of the races include Independent, Green, and other party candidates not shown in the table.
View the election results of all Senate races here.
Overall, Republicans had a net gain of 2 seats in the Senate.
| State | Democratic | Republican | RCP Avg | Actual |
| Arizona | Kyrsten Sinema | Martha McSally | McSally +0.2% | Sinema +1.7% |
| Florida | Bill Nelson | Rick Scott | Nelson +3.3% | Scott +0.2% |
| Indiana | Joe Donnelly | Mike Braun | Donnelly +1.3% | Braun +5.9% |
| Michigan | Debbie Stabenow | John James | Stabenow +10.5% | Stabenow +6.4% |
| Missouri | Claire McCaskill | Josh Hawley | Hawley +0.6% | Hawley +6.0% |
| Minnesota (2) | Tina Smith | Karin Housley | Smith +7.0% | Smith +9.6% |
| Mississippi | Mike Espy | Cindy Hyde-Smith and Chris McDaniel | Hyde-Smith +9.0% | Hyde-Smith +0.9% |
| Montana | Jon Tester | Matt Rosendale | Tester +4.5% | Tester +4.1% |
| Nevada | Dean Heller | Jacky Rosen | Tie | Rosen +5.0% |
| North Dakota | Heidi Heitkamp | Kevin Cramer | Cramer +11.4% | Cramer +10.8% |
| Ohio | Sherrod Brown | Josh Mandel | Brown +7.5% | Brown +6.4% |
| New Jersey | Robert Menendez | Bob Hugin | Menendez +9.2% | Menendez +10.1% |
| Pennsylvania | Bob Casey | Lou Barletta | Casey +14.3% | Casey +12.9% |
| Tennessee | Phil Bredesen | Marsha Blackburn | Blackburn +5.2% | Blackburn +10.8% |
| Texas | Beto O'Rourke | Ted Cruz | Cruz +6.0% | Cruz +2.6% |
| Virginia | Tim Kaine | Corey Stewart | Kaine +18.5% | Kaine +15.7% |
| West Virginia | Joe Manchin | Patrick Morrisey | Manchin +5.0% | Manchin +3.2% |
| Wisconsin | Tammy Baldwin | Leah Vukmir | Baldwin +10.6% | Baldwin +10.8% |
- Arizona
- Tight Race for Arizona Senate Is One of Costliest in the US | U.S. News & World Report
- Arizona Senate race goes to overtime with glacial vote count | Associated Press
- Arizona GOP sues to limit mail-in ballots in Senate race | Associated Press
- Kyrsten Sinema takes slight lead in Senate race over Martha McSally | ABC News
- The Arizona, Florida, and Georgia election recounts, explained | Vox
- Judge Refuses to Limit Arizona Vote Count in Razor-Close Senate Race | Time
- Trump tweets about Arizona's Senate race — and gets basic facts wrong | Vox
- The Latest: Sinema pads narrow lead in tight Senate race | Associated Press
- Democrat Kyrsten Sinema Wins Arizona Senate Race, Flipping Second GOP Seat | NPR
- Kyrsten Sinema is the first Democrat to win an Arizona Senate seat in 30 years | Vox
- Florida
- Rick Scott: 'Rampant Fraud' In Senate Election Process | Real Clear Politics
- Prominent Republicans push baseless conspiracy theories about Florida Senate election | Vox
- Nelson releases video: 'Rick Scott is trying to stop all the votes from being counted' | The Hill
- The Arizona, Florida, and Georgia election recounts, explained | Vox
- Palm Beach judge orders elections official to turn over ballots in legal win for Scott | The Hill
- GOP Senate candidate Rick Scott: 'Sen. Nelson is clearly trying to commit fraud' to win election | Fox News
- Trump says Florida elections should be called for Scott, DeSantis | The Hill
- Nelson calls on Scott to recuse himself in Florida recount | The Hill
- Judge denies Scott request for injunction against Broward County | The Hill
- Scott lawsuit over voting equipment in Palm Beach temporarily dismissed | The Hill
- Judge gives Florida voters two more days to correct ballot signature problems | The Hill
- Scott appeals judge's decision to give Florida voters extra time to fix ballot issues | The Hill
- Florida Senate race heads to a hand recount | The Hill
- Republican Rick Scott Wins Florida Senate Seat Over Incumbent Bill Nelson | NPR
- Mississippi
- Montana
- Texas
House of Representatives Election Results
View the election results of all House races here.
Overall, Democrats had a net gain of 40 seats in the House giving them a 235 to 199 majority.
| State/District | Democratic | Republican | RCP Avg* | Actual |
| Alaska/at large | Alyse Galvin | Don Young | Galvin +1.0% | Young +8.0% |
| Arizona/1 | Thomas O'Halleran | Wendy Rogers | no polling data | O'Halleran +6.4% |
| California/10 | Josh Harder | Jeff Denham | Harder +2.0% | Harder +2.6% |
| California/25 | Katie Hill | Stephen Knight | Knight +4.0% | Hill +3.4% |
| California/39 | Gil Cisneros | Young Kim | Cisneros +1.0% | Kim +1.4% |
| California/45 | Katie Porter | Mimi Walters | Porter +2.0% | Walters +1.4% |
| California/48 | Harley Rouda | Dana Rohrabacher | Rohrabacher +3.4% | Rouda +4.0% |
| Florida/15 | Kristen Carlson | Ross Spano | Spano +2.0% | Spano +6.2% |
| Florida/26 | Debbie Mucarsel-Powell | Carlos Curbelo | Mucarsel-Powell +1.0% | Mucarsel-Powell +1.8% |
| Florida/27 | Donna Shalala | Maria Salazar | Shalala +7.0% | Shalala +6.0% |
| Georgia/6 | Lucy McBath | Karen Handel | McBath +2.0% | McBath +1.0% |
| Georgia/7 | Carolyn Bourdeaux | Rob Woodall | Woodall +6.0% | Woodall +0.4% |
| Iowa/3 | Cindy Axne | David Young | Axne +1.5% | Axne +1.5% |
| Illinois/6 | Sean Casten | Peter Roskam | Casten +2.0% | Casten +5.6% |
| Illinois/14 | Lauren Underwood | Randy Hultgren | Underwood +6.0% | Underwood +3.8% |
| Kansas/2 | Paul Davis | Steve Watkins | Paul Davis +4.0% | Watkins +1.7% |
| Kentucky/6 | Amy McGrath | Andy Barr | Tie | Barr +3.2% |
| Maine/2 | Jared Golden | Bruce Poliquin | Golden +0.4% | Poliquin +0.4% |
| Michigan/8 | Elissa Slotkin | Mike Bishop | Slotkin +2.0% | Slotkin +3.8% |
| Michigan/11 | Haley Stevens | Lena Epstein | Stevens +3.5% | Stevens +7.2% |
| Minnesota/1 | Dan Feehan | Jim Hagedorn | Feehan +2.0% | Hagedorn +0.4% |
| Minnesota/7 | Collin Peterson | Dave Hughes | no polling data | Peterson +4.2% |
| Montana/at large | Kathleen Williams | Greg Gianforte | Gianforte +3.7% | Gianforte +5.1% |
| North Carolina/9 | Dan McCready | Mark Harris | Harris +1.0% | Harris +0.6% |
| New Jersey/3 | Andrew Kim | Tom MacArthur | MacArthur +0.3% | Kim +1.1% |
| New Mexico/2 | Xochitl Torres Small | Yvette Herrell | Herrell +1.8% | Small +1.4% |
| Nevada/3 | Susie Lee | Danny Tarkanian | Susie Lee +10.0% | Lee +9.1% |
| Nevada/4 | Steven Horsford | Cresent Hardy | Horsford +4.0% | Horsford +8.3% |
| New York/19 | Antonio Delgado | John Faso | Delgado +1.0% | Delgado +2.2% |
| New York/22 | Anthony Brindisi | Claudia Tenney | Tenney +1.0% | Brindisi +0.6% |
| Pennsylvania/1 | Scott Wallace | Brian Fitzpatrick | Fitzpatrick +2.5% | Fitzpatrick +2.6% |
| Pennsylvania/10 | George Scott | Scott Perry | Perry +2.5% | Perry +2.8% |
| Pennsylvania/16 | Ronald DiNicola | Mike Kelly | DiNicola +4.0% | Kelly +4.4% |
| Texas/7 | Lizzie Fletcher | John Culberson | Culberson +1.0% | Fletcher +4.6% |
| Texas/32 | Colin Allred | Pete Sessions | Allred +4.0% | Allred +6.3% |
| Utah/4 | Ben McAdams | Mia Love | McAdams +2.3% | McAdams +0.2% |
| Virginia/5 | Leslie Cockburn | Denver Riggleman | Cockburn +1.0% | Riggleman +6.6% |
| Virginia/7 | Abigail Spanberger | David Brat | Brat +2.0% | Spanberger +1.4% |
| Washington/8 | Kim Schrier | Dino Rossi | Kim Schrier +3.0% | Schrier +5.4% |
| * Note that unlike the Senate "RCP Avg" numbers, many of the House "RCP Avg" numbers are simply the spread of the last poll reported before the election and not an average of many different polls. | ||||
- California
- Georgia
- North Carolina
- N.C. GOP says fresh misconduct allegation should trigger new House election | Politico
- In N.C. election fraud case, witness says operative held onto 800 absentee ballots | NBC News
- From politics to the pulpit and back again: Mark Harris' rise on the religious right | The Charlotte Observer
- There's election fraud in North Carolina. That's not the same thing as voter fraud. | Vox
- Woman Admits to Ballot Tampering at North Carolina State Board of Elections Hearing | Health and Wellness Resource
- GOP's Mark Harris won't run again in contested North Carolina House race | The Hill
- NC political operative indicted in connection with alleged ballot-tampering scheme | The Hill
- Republican pulls off critical win in North Carolina | The Hill
- Republicans Hold On to North Carolina's 9th District in Redo Election | Real Clear Politics
- Trump brazenly rewrites history while giving himself credit for Dan Bishop's win | Vox
- Georgia
- Utah
- Virginia
State Governor/Gubernatorial Election Results
View the election results of all Senate races here.
Overall, Democrats had a net gain of 7 seats in governorships.
| State | Democratic | Republican | RCP Avg | Actual |
| Alaska | Mark Begich | Mike Dunleavy | Dunleavy +1.0% | Dunleavy +9.5% |
| Colorado | Jared Polis | Walker Stapleton | Polis +6.5% | Polis +8.3% |
| Connecticut | Ned Lamont | Bob Stefanowski | Lamont +4.5% | Lamont +2.9% |
| Florida | Andrew Gillum | Ron DeSantis | Gillum +4.0% | DeSantis +0.4% |
| Georgia | Stacey Abrams | Brian Kemp | Kemp +2.8% | Kemp +0.5% |
| Iowa | Fred Hubbell | Kim Reynolds | Hubbell +0.7% | Reynolds +3.0% |
| Kansas | Laura Kelly | Kris Kobach | Kobach +1.0% | Kelly +4.5% |
| Maine | Janet Mills | Shawn Moody | Mills +8.0% | Mills +7.6% |
| Michigan | Gretchen Whitmer | Bill Schuette | Whitmer +9.2% | Whitmer +9.5% |
| Minnesota | Tim Walz | Jeff Johnson | Walz +7.0% | Walz +11.5% |
| Nevada | Steve Sisolak | Adam Laxalt | Laxalt +0.6% | Sisolak +4.1% |
| New Hampshire | Molly Kelly | Chris Sununu | Sununu +4.0% | Sununu +7.0% |
| New Mexico | Michelle Lujan Grisham | Steve Pearce | Grisham +8.0% | Grisham +14.2% |
| Ohio | Richard Cordray | Mike DeWine | Cordray +4.7% | DeWine +4.3% |
| Oklahoma | Drew Edmondson | Kevin Stitt | Stitt +5.3% | Stitt +11.1% |
| Oregon | Kate Brown | Knute Buehler | Brown +4.3% | Brown +6.1% |
| South Dakota | Billie Sutton | Kristi Noem | Noem +1.0% | Noem +3.4% |
| Wisconsin | Tony Evers | Scott Walker | Tie | Evers +1.2% |
- Florida
- Florida governor's race faces recount as Senate race gets even tighter | Orlando Sentinel
- Gillum retracts concession in Florida governor's race | The Hill
- Trump says Florida elections should be called for Scott, DeSantis | The Hill
- With Florida recount over, Andrew Gillum's last chance to become governor rests with the courts | USA Today
- Gillum officially concedes in Florida gubernatorial race | The Hill
- Georgia
- Voters file emergency lawsuit to stop Georgia governor candidate Brian Kemp from overseeing election process | CNBC
- Stacey Abrams refuses to concede Georgia governor's race, hoping for runoff | CNN
- Why the political fight in Georgia is far from over | Vox
- The Arizona, Florida, and Georgia election recounts, explained | Vox
- Georgia governor's race is still undecided as votes continue to be counted | CNN
- Kemp campaign calls Abrams' refusal to concede 'a disgrace to democracy' | The Hill
- Democrat Abrams files new suit in Georgia governor's race | ABC News
- Federal judge finds Georgia county violated Civil Rights Act by rejecting ballots | The Hill
- Abrams, Kemp both claim victory after federal judge's split decision in Georgia | The Hill
- Abrams ends fight in Georgia governor's race | The Hill
- Kansas
- Wisconsin
State Ballot Measures Election Results
View the election results of all ballot measures here.
| State | Measure | Title | Passed | Result |
| Alabama | Amendment 2 | State Abortion Policy Amendment | Yes | 59.0% |
| Arizona | Proposition 126 | Prohibit New or Increased Taxes on Services Initiative | Yes | 64.0% |
| Arizona | Proposition 127 | Renewable Energy Standards Initiative | No | 69.3% |
| Arizona | Proposition 305 | Expansion of Empowerment Scholarship Accounts Referendum | No | 65.2% |
| Arizona | Proposition 306 | Clean Election Account Uses and Commission Rulemaking Measure | Yes | 56.1% |
| California | Proposition 6 | Voter Approval for Future Gas and Vehicle Taxes and 2017 Tax Repeal Initiative | No | 55.3% |
| Florida | Amendment 4 | Voting Rights Restoration for Felons Initiative | Yes | 64.5% |
| Florida | Amendment 9 | Ban Offshore Oil and Gas Drilling and Ban Vaping in Enclosed Indoor Workplaces Amendment | Yes | 68.9% |
| Idaho | Proposition 2 | Medicaid Expansion Initiative | Yes | 60.5% |
| Missouri | Amendment 2 | Medical Marijuana and Veteran Healthcare Services Initiative | Yes | 65.4% |
| Nebraska | Initiative 427 | Medicaid Expansion Initiative | Yes | 53.2% |
| North Dakota | Measure 3 | Marijuana Legalization and Automatic Expungement Initiative | No | 59.4% |
| Oklahoma | Question 788 | Medical Marijuana Legalization Initiative | Yes | 56.9% |
| Oregon | Measure 106 | Ban Public Funds for Abortions Initiative | No | 64.4% |
| Utah | Proposition 2 | Medical Marijuana Initiative (2018) | Yes | 52.7% |
| Utah | Proposition 3 | Medicaid Expansion Initiative | Yes | 53.3% |
| Washington | Initiative 1631 | Carbon Emissions Fee Measure | No | 56.5% |
| Washington | Initiative 1639 | Changes to Gun Ownership and Purchase Requirements Measure | Yes | 59.3% |
| West Virginia | Amendment 1 | No Right to Abortion in Constitution Measure | Yes | 51.7% |
- Renewable Energy and Prop 127, in a nutshell | Green Living AZ
- Arizona 2018 General Election Publicity Pamplet | azsos.gov
- AP: Arizona voters reject two ballot measures, approve three other ballot measures | Fox News
- "California General Election November 6, 2018 Official Voter Information Guide | sos.ca.gov
- Washington eyes nation's first state carbon tax to combat global warming | NBC News
- Michigan legalizes pot, Massachusetts keeps transgender rights and other ballot measure moments | PBS
State of Arizona Local Election Results
View the election results of all local Arizona races here.
| Contest | Democratic | Republican | Result |
| Governor | David Garcia | Doug Ducey | Ducey +14% |
| Secretary of State | Katie Hobbs | Steve Gaynor | Hobbs +2% |
| Attorney General | January Contreras | Mark Brnovich | Brnovich +4% |
| State Treasurer | Mark Manoil | Kimberly Yee | Yee +10% |
| Superintendant of Public Instruction | Kathy Hoffman | Frank Riggs | Hoffman +4% |
| State Mine Inspector | William Pierce | Joe Hart | Hart +4% |
| Corporation Commission | Sandra Kennedy | Kennedy 25% | |
| Corporation Commission | Justin Olson | Olson 25% | |
Post-election Analysis and Commentary
- With incoming lawmakers, Congress makes a historic shift | PBS
- Diversity on stark display as House's incoming freshmen gather in Washington | The Washington Post
- Democratic wins in these 9 states will have seismic policy consequences | Vox
- Trump Celebrates Republican Gains, Threatens House Democrats | Real Clear Politics
- An Agenda for a Divided Congress | Real Clear Politics
- Democrats won the House, but Trump won the election | The Washington Post
- Republicans are paying the Trump tax | Vox
- Democrats' health-care revenge | The Week
- Trump's Narrative vs. Pelosi's Subpoenas | Politico
- Trump boasts GOP defied midterm odds, knocks losers who didn't 'embrace' him | The Hill
- Expanded GOP Senate majority smooths way for Trump judicial nominees | Fox News
- Arizona midterm elections: 5 key takeaways from Tuesday | The Arizona Republic
- RIP, California GOP: Republicans lash out after midterm election debacle | Politico
- Republicans had a secret weapon in the Florida recount fight | NBC News
- 'He's Barack Obama, but white': Beto O'Rourke blows up the 2020 Democratic primary | Politico
Information Resources
US House swung Democratic by about 40 seats. US Senate went slightly more Republican. I now have renewed hope we can restore some Democracy, and trump Trump on many legislative battles and get some meaningful results over next 2 years. The House is now an effective “Loyal Opposition”. Well done grass roots voters across America.