Federal legislation that would protect state-legal marijuana activity from federal prohibition has gained a new cosponsor for the first time in nearly 11 months. Troy Carter (D-LA) joined the Strengthening the Tenth Amendment Through Entrusting States 2.0 Act, or STATES 2.0 Act, on Aug. 6, bringing the measure to eight cosponsors. Carter is the third Democrat to cosponsor House Bill 2934, joining Reps. Dina Titus (D-NV) and Val Hoyle (D-OR). The previous lawmaker to join the bill was Rep. Jay Obernolte (R-CA), who became a cosponsor on Sept. 19, 2025. The STATES 2.0 Act would amend the federal Controlled Substances Act so that its marijuana prohibitions generally would not apply to activity conducted in compliance with state law or qualifying tribal law.