JANUARY 2026:
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01/20/26: VA HD-017 (D+43): Garrett McGuire
The seat became vacant after Mark Sickles (D) resigned following his appointment as Virginia's Secretary of Finance.
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01/20/26: GA SD-18 (R+25): Lemario Brown
The seat became vacant after John Kennedy (R) resigned to run for lieutenant governor of Georgia.
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01/27/26: MN HD-47A (D+22): Shelley Buck
This seat became vacant after incumbent Amanda Hemmingsen-Jaeger (D) was elected to the MN State Senate.
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01/27/26: MN HD-64A (D+66): Meg Luger-Nikolai
This seat became vacant after incumbent Kaohly Her (D) was elected mayor of St. Paul, MN.
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01/31/26: TX SD-09: Taylor Rehmet
The seat became vacant after Kelly Hancock (R) was appointed to serve as Texas Comptroller of Public Accounts.
FEBRUARY 2026:
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02/03/26: AL HD-38 (R+32) Hazel Floyd
The seat became vacant after Debbie Hamby Wood (R) resigned in anticipation of moving out of the district.
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02/03/26: AD-026 (D+71): TBD
The seat became vacant after Zohran Mamdani (D) resigned following his election as Mayor of NYC.
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02/03/26: SD-47 (D+80): TBD
The seat became vacant after Brad Hoylman-Sigal (D) resigned following his election as Manhattan Borough President.
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02/03/26: SD-61 (D+20): Jeremy Zellner
The seat became vacant after Sean Ryan (D) resigned following his election as Mayor of Buffalo.
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02/03/26: NY AD-74 (D+73): Keith Powers
The seat became vacant after Harvey Epstein (D) resigned following his election to the New York City Council.
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02/10/26: OK HD-35 (R+51): Luke Kruse
The seat became vacant on October 1, 2025, after incumbent Ty Burns (R) resigned from office. Burns pleaded guilty to domestic violence charges on August 28, 2025.
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02/24/26: ME HD-094 (D+12): Scott Harriman
The seat became vacant after Kristen Cloutier (D) resigned to accept a position as chief of staff for the president of the Maine State Senate.
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02/24/26: PA HD-022 (D+42): Julian Guridy
The seat became vacant after Joshua Siegel (D) resigned from office following his election as Lehigh County Executive.
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02/24/26: PA HD-042 (D+27): Jen Mazzocco
The seat became vacant after Dan Miller (D) resigned from office following his election to the Allegheny County Court of Common Pleas.
MARCH 2026:
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03/03/26: AR SD-26 (R+52): TBD
This seat became vacant after incumbent Gary Stubblefield (R) passed away.
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03/03/26: AR HD-70 (R+12): Alex Holladay
This seat became vacant after incumbent Carlton Wing (R) resigned to take a position as CEO of Arkansas PBS.
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03/03/26: MA SD-MSEX01 (): TBD
The seat became vacant on October 1, 2025, after incumbent Edward Kennedy (D) passed away.
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03/10/26:NH HD-Carroll-07 (): Bobbi Boudman
The seat became vacant after Glenn Cordelli (R) resigned after selling his home and moving out of the district.
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03/10/26: GA-14 (R+37): Shawn Harris
The seat became vacant after Marjorie Taylor Greene (R) resigned.
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03/14/26: LA SD-03 (D+55): TBD
This seat became vacant after incumbent Joseph Bouie (D) resigned from office after he was named chancellor of Southern University at New Orleans.
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03/14/26 LA HD-037 (R+54): TBD
This seat became vacant after Troy Romero (R) resigned.
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03/14/26 LA HD-060 (R+06): TBD
This seat became vacant after Chad Brown (D) resigned from office following his appointment as commissioner of the LA Office of Alcohol and Tobacco Control.
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03/14/26 LA HD-097 (D+79):TBD
This seat became vacant after Matthew Willard (D) resigned from office following his election to the New Orleans City Council.
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03/14/26 LA HD-100 (D+73): TBD
This seat became vacant after Jason Hughes (D) resigned from office following his election to the New Orleans City Council.
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03/17/26: PA HD-079 (R+29): TBD
The seat became vacant after Louis Schmitt Jr. (R) was elected to the Blair County Court of Common Pleas.
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03/17/26: PA HD-193 (R+34): TBD
The seat became vacant after Torren Ecker (R) was elected to the Adams County Court of Common Pleas.
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03/24/26: FL HD-87 (R+01) Emily Gregory
The seat became vacant on August 18, 2025, after incumbent Mike Caruso (R) resigned from office following his appointment as Palm Beach County Clerk of the Circuit Court and Comptroller.
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03/24/26: FL SD-14 (D+02) Brian Nathan
The seat became vacant on August 12, 2025, after incumbent Jay Collins (R) resigned from office following his appointment as Lieutenant Governor of Florida.
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03/24/26: FL HD-51 (R+08): Edwin Perez
This seat became vacant after incumbent Josie Tomkow (R) resigned from office to run for Florida State Senate District 14.
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03/24/26: FL HD-52 (R+39): TBD
This seat became vacant on after incumbent John Temple (R) resigned from office following his appointment as president of Lake-Sumter State College.
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03/31/26: MA HD-05 ESSX (): TBD
The seat became vacant after Ann-Margaret Ferrante (D) died.
APRIL 2026:
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04/16/26: NJ-11 (D+05): TBD
This seat became vacant after Mikie Sherrill (D) was elected Governor of New Jersey.
MAY 2026:
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05/02/26: TX SD-04 (R+34) TBD
This seat became vacant on after incumbent Brandon Creighton (R) resigned to accept the position of Chancellor of the TX Tech University System.
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05/05/26: MI SD-35 (D+04): TBD
The seat became vacant due to incumbent Kristen McDonald Rivet (D) winning a U.S. House seat for MI-08.
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Late May/Early June: CA-01 (???): TBD
The seat became vacant after incumbent Doug LaMalfa (R) died.
NOVEMBER 2026:
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11/03/26: CO SD-17 (D+31) TBD
The seat became vacant after incumbent Sonya Jaquez Lewis (D) resigned from office.
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11/03/26: CO SD-29 (D+29) TBD
This seat became vacant after incumbent Janet Buckner (D) resigned from office.
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11/03/26: CO SD-31 (D+61) TBD
This seat became vacant after incumbent Chris Hansen (D) resigned from office.
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11/03/26: ND HD-026 (R+79): TBD
The seat became vacant after Jeremy Olson (R) resigned from office on May 5, 2025.
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11/03/26: ND HD-042 (R+20): TBD
The seat became vacant after Emily O'Brien (R) resigned from office to become the deputy commissioner of the ND HHS Dept.
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11/03/26: OK HD-092 (D+16): TBD
This seat became vacant after incumbent Forrest Bennett (D) resigned to accept the position of president of the OK AFL-CIO.
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11/03/26: OK SD-17 (R+44): TBD
The seat became vacant after Shane Jett (R) reached his term limit.