SPEARFISH, SD - OCTOBER 20, 2016 -- Cliff Pluimer, a student at the South Dakota School of Mines takes a selfie with Libertarian vice-presidential candidtate Bill Weld after a visit to the campus of Black Hills State University Thursday. At right, Pluimer's classmate Bryan Waugh waits his turn. (Photo by Richard Carlson/dakotapress.org)