Here are the races we're focusing on: 

Iowa

Christina Bohannan (IA-01)
running against Republican Rep. Miller-Meeks

Lindsay James (IA-02)
running in an open seat held currently by Republican Rep. Hinson

Sarah Trone Garriott (IA-03)
running against Republican Rep. Nunn

Michigan

Sean McCann (MI-04)
running against Republican Rep. Huizinga

William Lawrence (MI-07)
running against Republican Rep. Barrett

Christina Hines (MI-10)
running in an open seat held currently by Republican Rep. James

Nebraska

Denise Powell (NE-02)
running in an open seat held currently by Republican Rep. Bacon

Ohio

Rep. Greg Landsman (OH-01)
running to protect his seat from a Ohio Republican gerrymander

Brian Poindexter (OH-07)
running against Republican Rep. Miller

Rep. Marcy Kaptur (OH-09)
running to protect her seat from an Ohio Republican gerrymander

Wisconsin

Rebecca Cooke (WI-03)
running against Republican Rep. Van Orden