Absentee ballots for South Dakota’s June 2 primary election will not be available on the first day of the absentee voting period, the Union County Auditor’s Office announced this week.    State law sets the absentee voting window to begin 46 days before an election, under SDCL 12‑19‑1.2. However, the deadline for candidates to file petitions was March 31, as outlined in SDCL…