2024 South Dakota Amendment H

South Dakota Amendment H was a constitutional amendment that appeared on the ballot on November 5, 2024. The amendment would have established a top-two or nonpartisan blanket primaries for state partisan elections. The deadline to submit signatures for constitutional referendums was May 7, with the top-two initiative being certified for the ballot on May 21. In a top-two primary, all candidates regardless of party will appear on the same primary ballot, and the top two candidates will face off in the general election. As of May 2024, five states use a top-two primary or some variation: California, Louisiana (known as a "Louisiana primary"), Nebraska, and Washington state, and, most recently, Alaska in 2020.