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Class 2 · 2026 cycle · Results being counted
Senate races to watch
Every class-2 Senate race, sorted by challenger fundraising as a share of the incumbent's war chest. 50%+ challenger ratio means the seat is being meaningfully contested at the money level. Open seats (the incumbent is retiring or lost the primary) sort to the top regardless of the dollar math.
Caveat: fundraising momentum isn't outcome — incumbents win 90%+ of contested races even when outraised. This board is about attention, not prediction.
| State | Incumbent | Inc. raised | Challengers | Top challenger | Compete % |
|---|---|---|---|---|---|
| SC | Darline Graham(R) On the ballotAndrews (D) · Graham (R) · Whitener (L) · Hackett (C) D primary: Andrews 61.5% def. Brown, Freeman · R primary: Graham (died after the primary) def. Cowen, Herrmann, Lynch, Mitchell, Dismukes | $1.9M | 3 | Annie Andrews D · $24M | 1,264% |
| KS | Roger Marshall(R) On the ballotHamilton (D) · Marshall (R) · Graham (L) | $5.4M | 2 | Adam Hamilton D · $19M | 358% |
| OH | Jon Husted(R) On the ballotBrown (D) · Husted (R) · Levy (I) · Redpath (L) D primary: Brown 89.4% def. Kincaid | $20M | 3 | Sherrod Brown D · $68M | 345% |
| AK | Dan Sullivan(R) On the ballotPeltola (D) · Sullivan (R) · Sullivan (R) · Heikes (R) Primary (all parties): Peltola 49.54%, Sullivan (inc.) 41.4%, Sullivan 2.47%, Heikes 1.05% advanced | $12M | 3 | Mary Peltola D · $37M | 321% |
| ME | Susan M. Collins(R) On the ballotJackson (D) · Collins (R) | $22M | 1 | Troy D. Jackson D · $27M | 120% |
| MI | Gary C. Peters(D) Retiring On the ballotEl-Sayed (D) · Rogers (R) · Christensen (L) · Kristy (other) · +2 more D primary: El-Sayed 48.45% def. Stevens | — | 6 | Abdul El-Sayed D · $54M | OPEN |
| OK | Alan Armstrong(R) Retiring On the ballotHern (R) · Thomas (D) · Meinhardt (I) · White (L) · +1 more D runoff: Thomas 61.2% def. Priest | — | 5 | Kevin Hern R · $11M | OPEN |
| MN | Tina Smith(D) Retiring On the ballotTafoya (R) · Flanagan (D) · Whiting (L) · Simonetti (other) R primary: Tafoya 52.6% def. Schwarze, White · D primary: Flanagan 59% def. Craig, Nord | — | 4 | Michele Tafoya R · $13M | OPEN |
| MT | Steve Daines(R) Retiring On the ballotBodnar (I) · Alme (R) · Austin (L) · Bankhead (D) D primary: Bankhead 43.7% def. Neill, Blackwolf, Kehoe · R primary: Alme 76.2% def. Calhoun, Walkingchild | — | 4 | Seth Bodnar I · $4.9M | OPEN |
| NC | Thomas Tillis(R) Retiring On the ballotCooper (D) · Whatley (R) · Dublin (G) · Bray (L) R primary: Whatley 64.6% def. Brown, Johnson, Morrow | — | 4 | Roy Cooper D · $50M | OPEN |
| IA | Joni Ernst(R) Retiring On the ballotTurek (D) · Hinson (R) · Laehn (L) R primary: Hinson 73.9% def. Carlin · D primary: Turek 62.6% def. Wahls | — | 3 | Josh Turek D · $24M | OPEN |
| IL | Richard J. Durbin(D) Retiring On the ballotStratton (D) · Tracy (R) · Harrington (I) D primary: Stratton 40.4% def. Krishnamoorthi, Kelly, Ryan · R primary: Tracy 40% def. Evans, Chlebek, Capparelli, Long, Tillman | — | 3 | Juliana Stratton D · $7.2M | OPEN |
| KY | Mitch McConnell(R) Retiring On the ballotBarr (R) · Booker (D) · Campbell (other) R primary: Barr 60.5% def. Cameron | — | 3 | Andy Barr R · $13M | OPEN |
| NH | Jeanne Shaheen(D) Retiring On the ballotPappas (D) · Sununu (R) · Laplante (other) D primary: Pappas def. Manzur · R primary: Sununu 69% def. Brown | — | 3 | Chris Pappas D · $24M | OPEN |
| TX | John Cornyn(R) Lost primary On the ballotTalarico (D) · Paxton (R) · Brown (L) R runoff: Paxton 63.8% def. Cornyn (inc.) · D primary: Talarico 52.4% def. Crockett | — | 3 | James Talarico D · $146M | OPEN |
| AL | Tommy Tuberville(R) Retiring On the ballotMoore (R) · Wess (D) R runoff: Moore 60% def. Hudson · D runoff: Wess 54.6% def. Larriett | — | 2 | Barry Moore R · $4.6M | OPEN |
| LA | Bill Cassidy(R) Lost primary On the ballotLetlow (R) · Davis (D) R runoff: Letlow 56.86% def. Fleming · D runoff: Davis 79.91% def. Crockett | — | 2 | Julia Letlow R · $7.1M | OPEN |
| WY | Cynthia M. Lummis(R) Retiring On the ballotHageman (R) · Byrd (D) D primary: Byrd 79.3% def. Benavidez · R primary: Hageman 62.7% def. Mead | — | 2 | Harriet Hageman R · $2.8M | OPEN |
| MS | Cindy Hyde-Smith(R) On the ballotHyde-Smith (R) · Colom (D) · Pinkins (I) R primary: Hyde-Smith 80.8% def. Adlakha · D primary: Colom 72.9% def. Till, Littell | $4.6M | 2 | Scott Colom D · $4.4M | 97% |
| FL | Ashley Moody(R) On the ballotMoody (R) · Nixon (D) · Gillespie (other) D primary: Nixon 56.1% def. Vindman · R primary: Moody 75.3% def. Gleason, Rivera | $15M | 2 | Angie Nixon D · $11M | 78% |
| NE | Pete Ricketts(R) On the ballotRicketts (R) · Osborn (I) · Marvin (other) · Conboy (other) · +1 more R primary: Ricketts 81.5% def. Axtell Schultz · D primary: Burbank 89.5% (later withdrew) def. Forbes | $15M | 4 | Dan Osborn I · $11M | 76% |
| AR | Tom Cotton(R) On the ballotCotton (R) · Shoffner (D) · Wadlin (L) R primary: Cotton 81.6% def. Ashby, Little · D primary: Shoffner 78.3% def. Dunbar | $7.1M | 2 | Hallie Shoffner D · $4.0M | 58% |
| ID | James E. Risch(R) On the ballotRisch (R) · Achilles (I) · Fleming (other) · Loesby (L) R primary: Risch def. Evans, Lave, Roy · D primary: Roth 61.9% (later withdrew) def. Bonds | $3.9M | 3 | Todd Achilles I · $1.9M | 49% |
| SD | Mike Rounds(R) On the ballotRounds (R) · Bengs (I) R primary: Rounds 75.8% def. Mcneal | $3.8M | 1 | Brian L Bengs I · $1.9M | 49% |
| CO | John W. Hickenlooper(D) On the ballotHickenlooper (D) · Chew (other) · Baisley (R) · Baum (other) · +2 more D primary: Hickenlooper 57% def. Gonzales | $9.5M | 5 | Bob Chew ? · $3.6M | 39% |
| MA | Edward J. Markey(D) On the ballotMarkey (D) · Deaton (R) · Tache (other) · Ayyadurai (I) D primary: Markey 64.7% def. Moulton | $6.0M | 3 | John Deaton R · $1.7M | 37% |
| RI | Jack Reed(D) On the ballotReed (D) · McKay (R) · Bahry (I) D primary: Reed 76% def. Burbridge, Munoz | $3.7M | 2 | Raymond T McKay R · $207K | 9% |
| GA | Jon Ossoff(D) On the ballotOssoff (D) · Collins (R) R runoff: Collins 55% def. Dooley | $116M | 1 | Mike Collins R · $11M | 9% |
| OR | Jeff Merkley(D) On the ballotMerkley (D) · Smith (R) · Dye (L) · Henry (other) R primary: Smith 29.5% def. Perkins, Mcalmond | $5.4M | 3 | David Brock Smith R · $311K | 6% |
| VA | Mark R. Warner(D) On the ballotWarner (D) · Mizusawa (R) R primary: Mizusawa 51% def. Williams, Farington | $20M | 1 | Bert Mizusawa R · $1.1M | 6% |
| WV | Shelley Moore Capito(R) On the ballotCapito (R) · Anderson (D) · Wilson (C) R primary: Capito 66.5% def. Willis · D primary: Anderson 33.2% def. Kessler, Shrewsbury, Phillips | $5.4M | 2 | Rachel Fetty Anderson D · $165K | 4% |
| DE | Christopher A. Coons(D) On the ballotCoons (D) · Katz (R) D primary: Coons 78% def. Appelhans, Louve, Hansen · R primary: Katz 77.3% def. Shulli | $5.0M | 1 | Michael "Dr. Mike" Katz R · $190K | 4% |
| NM | Ben Ray Luján(D) On the ballotLuján (D) · Marker (R) D primary: Luján 83.7% def. Dodson | $6.5M | 1 | Larry E Marker R · $99K | 2% |
| TN | Bill Hagerty(R) On the ballotHagerty (R) · Bradshaw (D) · Sutman (I) · Jones (I) · +6 more D primary: Bradshaw 54.8% def. Brewer, Mccants | $8.4M | 9 | Marquita Bradshaw D · $35K | 1% |
| NJ | Cory A. Booker(D) On the ballotBooker (D) · Murphy (R) · Fernandez (I) · Kuniansky (other) R primary: Murphy 33.3% def. Tabor, Zdan, Lebovics | $21M | 3 | Justin Murphy R · $68K | 0% |