Inside Elections 2024 Senate Ratings: 2 Toss-up Races: Tester (D-MT) and Brown (D-OH). 4 Tilt Democratic Races: AZ Open (Sinema I), MI Open (Stabenow, D), Casey (D-PA); Rosen (D-NV). 1 Lean Democratic Race: Baldwin (D-WI). 1 Likely Democratic Race: MD Open (Cadin,D) and 1 Likely Republican Race: Cruz (R-TX). Inside Elections with Nathan L. Gonzales.