Fourth and Seventh Circuit Judicial Districts; revise.

HB 580 revises judicial district boundaries and judge assignments for Mississippi's Fourth and Seventh Circuit Courts. For the Fourth Circuit, it adds Holmes and Humphreys counties starting January 2031, reorganizing the district into two subdistricts (one covering Washington/Sunflower, the other Leflore/Holmes/Humphreys) and changing judge elections from one per subdistrict to two per subdistrict. For the Seventh Circuit, it expands the district to include Claiborne and Jefferson counties effective January 2027, adding new subdistricts and adjusting precinct boundaries within Hinds County. The bill takes effect at specific dates (2027 for the Seventh Circuit, 2031 for the Fourth) and includes conditional deadlines for judicial candidates. These changes directly affect counties and judicial candidates in these districts.