Vegas US Senate Odds 2026
Republicans currently control the U.S. Senate with 53 seats, while Democrats hold 45 seats and two independents caucus with the Democratic Party. The 2026 election cycle gives both parties opportunities to defend vulnerable seats, compete for open seats, and potentially change the balance of power in the upper chamber.
The current Vegas odds for Republicans and Democrats can move throughout the campaign as primaries conclude, candidates withdraw, polling changes, and individual Senate races become more competitive. Several incumbents are retiring, including senators from Michigan, New Hampshire, Minnesota, Iowa, Kentucky, North Carolina, and other states, creating several open-seat contests in 2026.
Below, we cover the latest Vegas U.S. Senate odds for 2026, key races to watch, and the betting markets that could determine which party controls the Senate beginning in 2027.
Is It Legal To Bet On US Senate Elections?
Although Las Vegas casinos regularly post odds on political election outcomes, they cannot legally accept wagers on politics or elections. In fact, no US state’s domestic sportsbooks are able to do so. Vegas election odds are created to draw attention to NV’s local sportsbook and casino operations, so bettors wager on other lines and play games and slots on the casino floor. But you can still legally bet on elections online!
The best option for political bettors to wager on US Senate elections is with an offshore sportsbook operating over the Internet. Wagering with an overseas book is almost universally legal because most states have no laws against the activity, and there are no federal US gambling laws preventing legal access.
2026 US Senate Odds
Republicans currently control the U.S. Senate with 53 seats, while Democrats hold 45 seats and two independents caucus with the Democrats. The 2026 midterm elections will determine control of dozens of Senate seats, including several open races created by retirements and special elections held before the next Congress begins.
The best sites for Vegas election odds offer markets on overall Senate control as well as individual state races. Those lines can move considerably as polling changes, candidates advance from the primaries, and the November 3, 2026 general election approaches.
Current Odds - Political Specials
Which Party Will Control The Senate After The 2026 Election?
- Republican -120
- Democratic +115
Odds Provided By Bovada
Current Odds - Senate Elections
Alabama
- Barry Moore (R) -6000
- Everett Weiss (D) +1100
Alaska
- Dan Sullivan (R) +275
- Mary Peltola (D) -450
Arkansas
- Tom Cotton (R) -3000
- Hallie Schoffner (D) +850
Colorado
- Mark Baisley (R) +2000
Delaware
- Michael Katz (R) +3000
Florida (Special)
- Ashley Moody (R) -3000
- Angie Nixon (D) +850
Georgia
- Mike Collins (R) +850
- Jon Ossoff (D) -3000
Idaho
- Jim Risch (R) -1800
- David Roth (D) +10000
- Todd Achilles (I) +700
Illinois
- Don Tracy (R) +3000
Iowa
- Ashley Hinson (R) -120
- Josh Turek (D) -120
Kansas
- Roger Marshall (R) -260
- Aidan Hamilton (D) +170
Kentucky
- Andy Barr (R) -5000
- Charles Booker (D) +1000
Louisiana
- Julia Letlow (R) -5000
- Jamie Davis (D) +1000
Maine
- Susan Collins (R) +160
- Troy Jackson (D) -240
Massachusetts
- John Deaton (R) +2000
Michigan
- Mike Rogers (R) +225
- Abdul El-Sayed (M) -350
Minnesota
- Michele Tafoya (R) +850
- Peggy Flanagan (D) -3000
Mississippi
- Cindy Hyde-Smith (R) -2000
- Scott Colom (D) +800
- Ty Pinkins (I) +10000
Montana
- Kurt Alme (R) -1600
- Alani Bankhead (D) +2000
- Seth Bodnar (I) +600
Nebraska
- Pete Ricketts (R) -260
- Dan Osborn (I) +170
New Hampshire
- John Sununu (R) +350
- Chris Pappas (D) -600
New Jersey
- Justin Murphy (R) +1200
- Cory Booker (D) -8000
New Mexico
- Larry Marker (R) +1600
North Carolina
- Michael Whatley (R) +850
- Roy Cooper (D) -3000
Ohio (Special)
- Jon Husted (R) +150
- Sherrod Brown (D) -200
Oklahoma
- Kevin Hern (R) -6000
- N'kiyla Jasmine Thomas (D) +1100
Oregon
- David Brock Smith (R) +1100
- Jeff Merkley (D) -6000
Rhode Island
- Raymond McKay (R) +1100
- Jack Reed (D) -5000
South Carolina
- Darline Graham (R) -900
- Annie Andrews (D) +500
South Dakota
- Mike Rounds (R) -3000
- Brian Bengs (I) +850
Tennessee
- Marquita Bradshaw (D) +2000
Texas
- Ken Paxton (R) +130
- James Talarico (D) -175
Virginia
- Bert Mizusawa (R) +2000
West Virginia
- Rachel Fetty Anderson (D) +2000
Wyoming
- James W. Byrd (D) +2000
Senate Runoff Elections Explained
Here, we present an example of how many Senate runoff elections work. However, most states do not follow this runoff system and use their own mechanisms. Georgia is one of twelve states that use this runoff method, and it matters because GA was the last state to require a Senate runoff.
Candidates A, B, and C appear on the ballot for a US Senate seat. Candidate A gets 40% of the vote, Candidate B gets 38%, and Candidate C gets the remaining 22%.
If this state followed a plurality voting system, the candidate with the highest percentage of votes, Candidate A in this example, wins. But in a runoff election system, this works differently.
In States with runoff election systems, a candidate needs a majority (50+%) of the vote to win. If no candidate gets a majority in the general election, the two candidates with the highest percentages of votes compete in a runoff election.
In the example above, Candidate A and Candidate B are the two candidates with the most votes. Since neither got 50%, they both advance to a runoff election in which the electorate votes between the two candidates.
Senate Special Elections Explained
A Senate special election, or by-election, is a Senate election held outside the normally scheduled Midterm and general elections. For example:
Senator A is one year into his six-year term and develops health issues that force him to retire early. Since the next election is still five years away, a special election will be held to fill the vacated Senate seat.
In some cases, a special election happens relatively immediately, but in other cases, the state governor may appoint an interim Senator to fill the empty seat until the next scheduled Midterm or general election.