"Therefore, be it resolved that the South Dakota Republican Party calls on our U.S. Representatives to initiate impeachment proceedings against the president of the United States," the resolution reads.
The resolution accused Obama of violating "his oath of office in numerous ways," and mentions the recent trade of five Taliban members for captive U.S. soldier Bowe Bergdahl, among other issues.
Delegates voted 191-176 in favor of the resolution.
"I've got a thick book on impeachable offenses of the president," resolution sponsor Allen Unruh told the Argus Leader.