State Auditor Dave Boliek is continuing to investigate soaring autism therapy costs amid growing concerns about potential Medicaid fraud and abuse. In politics, new NRCC polling shows Republican Laurie Buckhout and Democrat Don Davis locked in a dead heat in one of the state’s most competitive congressional races. A new study also finds cellphone bans in schools are producing slow but measurable improvements in student behavior and learning. Meanwhile, a court has rejected key Trump tariff claims while dismissing challenges brought by North Carolina and several other states. Lawmakers are also preparing for another busy day at the General Assembly.