Donna Miller secured the Democratic nomination for Illinois’s 2nd Congressional District in the March 2026 primary, defeating a crowded field that included former U.S. Rep. Jesse Jackson Jr. The open seat, vacated by Rep. Robin Kelly, sits in a district with a strong Democratic partisan lean and a history of electing Democrats by wide margins since the 1950s. Race ratings from multiple outlets classify the contest as safe or solid Democratic. Republican nominee Mike Noack advanced unopposed in his primary but faces structural disadvantages in voter registration and past election results. Trader consensus reflects these fundamentals, with limited recent campaign activity or external events capable of shifting the balance before the November general election. A major unforeseen development, such as a significant scandal or national political realignment, would be required to meaningfully alter the outcome.