J.D. Vance won the Ohio Republican Senate primary after an endorsement from Donald Trump signaling that the Republican party may still be beholden to Trump and his loyal followers. While the battle over the Republican party plays out state to state, both Democrats and Republicans fight over state and congressional maps, which have been redrawn after the 2020 census. We look at primary elections across the country and how redistricting may impact the results with Amy Walter, Editor-in-Chief of The Cook Political Report.