2018 Cycle

Challengers
Colin Allred (TX-32)
Cindy Axne (IA-03)
Josh Butner (CA-50)
Gil Cisneros (CA-39)
Jason Crow (CO-06)
Antonio Delgado (NY-19)
Ron DiNicola (PA-16)
Dan Feehan (MN-01)
Abby Finkenauer (IA-01)
Jared Golden (ME-02)
Ken Harbaugh (OH-07)
Jahana Hayes (CT-05)
MJ Hegar (TX-31)
Chrissy Houlahan (PA-06)
RD Huffstetler (VA-05)
Chris Hunter (FL-12)
Gina Ortiz Jones (TX-23)
Brendan Kelly (IL-12)
Andy Kim (NJ-03)
Joseph Kopser (TX-21)
Conor Lamb (PA-17)
Susie Lee (NV-03)
Elaine Luria (VA-02)
Tom Malinowski (NJ-07)
Dan McCready (NC-09)
Amy McGrath (KY-06)
Joe Neguse (CO-02)
Aftab Pureval (OH-01)
Rachel Reddick (PA-01)
Max Rose (NY-11)
Mikie Sherrill (NJ-11)
Elissa Slotkin (MI-08)
Abigail Spanberger (VA-07)
Lauren Underwood (IL-14)
Xochitl Torres Small (NM-02)
Pat Ryan (NY-19)
Aaron Scheinberg (VA-02)
Maura Sullivan (NH-01)
Josh Welle (NJ-04)
Pat Spearman (NV-04)
Nancy Soderberg (FL-06)

2020 Cycle

Incumbents
Rep. Colin Allred (TX-32)
Rep. Cindy Axne (IA-03)
Rep. Gil Cisneros (CA-39)
Rep. Jason Crow (CO-06)
Rep. Antonio Delgado (NY-19)
Rep. Abby Finkenauer (IA-01)
Rep. Jared Golden (ME-02)
Rep. Jahana Hayes (CT-05)
Rep. Chrissy Houlahan (PA-06)
Rep. Andy Kim (NJ-03)
Rep. Conor Lamb (PA-17)
Rep. Susie Lee (NV-03)
Rep. Elaine Luria (VA-02)
Rep. Tom Malinowski (NJ-07)
Rep. Joe Neguse (CO-02)
Rep. Max Rose (NY-11)
Rep. Mikie Sherrill (NJ-11)
Rep. Elissa Slotkin (MI-08)
Rep. Abigail Spanberger (VA-07)
Rep. Lauren Underwood (IL-14)
Rep. Xochitl Torres Small (NM-02)

Challengers
Jake Auchincloss (MA-04)
Francis Conole (NY-24)
Cal Cunningham (North Carolina)
Moe Davis (NC-11)
Evelyn Farkas (NY-17)
Dan Feehan (MN-01)
Nikki Foster (OH-01)
Mike Franken (Iowa)
Pritesh Gandhi (TX-10)
Janessa Goldbeck (CA-53)
Jackie Gordon (NY-02)
Christina Hale (IN-05)
Josh Hicks (KY-06)
Gina Ortiz Jones (TX-23)
Kaiali'i Kahele (HI-02)
Zahara Karinshak (GA-07)
Pam Keith (FL-18)
Mark Kelly (Arizona)
Brynne Kennedy (CA-04)
Sri Preston Kulkarni (TX-22)
James Mackler (Tennessee)
Amy McGrath (Kentucky)
Tom McDermott (IN-01)
Kim Olson (TX-24)
Adrian Perkins (Louisiana)
Stephanie Schmid (NJ-04)
Hillary Scholten (MI-03)
Cameron Webb (VA-05)

2022 Cycle

Incumbents
Rep. Colin Allred (TX-32)
Rep. Jake Auchincloss (MA-04)
Rep. Cindy Axne (IA-03)
Rep Jason Crow (CO-06)
Sen. Tammy Duckworth (Illinois)
Rep. Jared Golden (ME-02)
Rep. Jahana Hayes (CT-05)
Rep. Chrissy Houlahan (PA-06)
Sen. Mark Kelly (Arizona)
Rep. Andy Kim (NJ-03)
Rep. Susie Lee (NV-03)
Rep. Elaine Luria (VA-02)
Rep. Tom Malinowski (NJ-07)
Rep. Joe Neguse (CO-02)
Rep. Mikie Sherrill (NJ-11)
Rep. Elissa Slotkin (MI-07)
Rep. Abigail Spanberger (VA-07)
Rep. Lauren Underwood (IL-14)

Challengers
Jay Chen (CA-45)
Francis Conole (NY-22)
Don Davis (NC-01)
Chris Deluzio (PA-17)
Jackie Gordon (NY-02)
Adam Hollier (MI-13)
Jeff Jackson (NC-14)
Kermit Jones (CA-03)
Jonathan Logemann (IL-17)
Seth Magaziner (RI-02)
Jessica Mason (TX-30)
Deb McGrath (WI-03)
Quaye Quartey (CA-27)
Ruben Ramirez (TX-15)
Joseph Rocha (CA-50)
Will Rollins (CA-41)
Max Rose (NY-11)
Pat Ryan (NY-18)
Hillary Scholten (MI-03)