South Dakota voters are deciding whether to add protections for abortion rights to the state constitution and potentially overturn the state’s abortion ban. The abortion rights measure stands in a crowded field of initiatives on Tuesday’s general election ballot. Others included the proposed legalization of marijuana for recreational use, a measure to remove the state sales tax from food, and a plan for a single, all-candidate primary with the top two finishers advancing. The abortion measure would amend the South Dakota Constitution and protect abortion access through the 26th week of pregnancy. However, a lawsuit filed by abortion opponents is pending and could nullify the measure.