Arizona Primary Watch: AP lays out what to expect Tuesday in Arizona’s state primary, including competitive county races and key congressional matchups. GOP Power Struggle: With the governor’s race looming, Arizona Republicans choose a nominee to take on Gov. Katie Hobbs, as Trump-backed candidates collide with more establishment-leaning rivals. Congressional Primaries: Three Arizona congressional GOP contests are in the spotlight, testing whether Trump endorsements can hold in tight races. Local Elections: Scottsdale and Gilbert primaries are heating up, with familiar local names and fresh fundraising dynamics shaping outcomes. Public Safety: Tucson police report a downtown mass shooting that left nine people wounded, with the suspect also injured after officers confronted him. Nancy Guthrie Case: Sheriff Chris Nanos faces renewed online scrutiny after claims he returned to Guthrie’s home, reigniting debate over his early decision to bypass the FBI. Tech & Jobs: TSMC says it will add another $100B to expand Arizona chip facilities, while warning about construction and infrastructure constraints. Water Crisis: Lake Powell and Lake Mead hit record-low levels, underscoring how dire Colorado River conditions remain. Healthcare Costs: ACA insurers are seeking double-digit 2027 premium increases, while a policy advocate argues for changing how providers get paid.