Florida's congressional map faces major upheaval as Republican-led redistricting efforts scramble competitive districts ahead of Tuesday's primaries, while Alaska's unique ballot chaos has captured national attention with two candidates named Dan Sullivan vying for the same Senate seat. The twin developments highlight how structural changes to electoral systems are reshaping the 2026 midterm landscape.

Florida Redistricting Redraws Political Battle Lines

Republican mapmakers in Florida have aggressively redrawn congressional boundaries following the 2024 census, creating new competitive dynamics in several districts as the state's delegation faces primary tests. The redistricting effort has forced incumbents to navigate unfamiliar territory and sparked intense battles between establishment Republicans and challengers backed by grassroots conservatives. Several scandal-plagued candidates remain in contention despite ethics concerns, adding further unpredictability to Tuesday's outcomes.

The redistricting scramble extends beyond Florida to Wyoming and California, where primaries Tuesday will help determine the final battlefield for control of Congress this fall. Republicans currently hold a narrow 218 to 214 majority in the House, with three vacancies, making even small shifts in competitive seats potentially decisive for chamber control. The contests will also serve as a referendum on President Donald Trump's second term agenda.

Alaska's Double Sullivan Problem

Alaska's Senate primary presents voters with an unusual dilemma. Two candidates named Dan Sullivan appear on the ballot, including incumbent Republican Senator Dan S. Sullivan seeking his third term. The confusion has prompted accusations from President Trump and other Republicans that Democrats are engaging in tactical sabotage to split the vote under Alaska's ranked choice voting system.

The nonpartisan primary on Tuesday will advance the top four candidates to a November general election conducted under ranked choice rules, where voters rank their preferences in order. Former congresswoman Mary Peltola is running as the Democratic challenger, giving the party its strongest Senate recruit in Alaska since 2015. Recent polling shows the race deadlocked, with Peltola holding a narrow lead within the margin of error in final ranked choice rounds.

Ranked Choice Voting Faces New Scrutiny

Alaska's voting system continues to draw fire from conservatives who argue it produces confusing outcomes and enables strategic manipulation. Trump has called ranked choice voting "ONE OF THE GREATEST THREATS TO DEMOCRACY" and urged Alaskans to support repeal efforts. Critics point to situations like the double Dan Sullivan candidacy as evidence the system creates opportunities for ballot mischief that traditional primaries would avoid.

Supporters of ranked choice voting counter that it encourages candidates to build broader coalitions and reduces the influence of party extremes by allowing voters to express nuanced preferences. Alaska adopted the system through a 2020 ballot measure, and it has been credited with electing more centrist lawmakers in recent cycles, including Senator Lisa Murkowski's 2024 reelection despite facing a Trump-backed primary challenger.

Tuesday's primaries across multiple states will set the stage for November's fiercely contested midterms. With Congress narrowly divided and Trump's approval ratings creating headwinds for Republicans in several swing districts, both parties are watching closely to see which candidates emerge from these final primary battles and how structural factors like redistricting and ranked choice voting shape the path to victory.