The bride is the daughter of Bob and Renee Swisher of Groton, S.D., and the bridegroom is the son of Craig and Jeanie Roberts of Le Mars.
Lindsey Tietz of Groton, S.D., was maid of honor.
CJ Roberts of Lincoln, Neb., served as best man.
Ringbearer was Lane Yoder.
The reception was held at St. Mary's Episcopal Church in Washington, D.C.
Erica earned a bachelor of arts degree in communications from Augustana College. She is employed with South Dakota Senator Tim Johnson's office.
Aaron earned his bachlor of science degree in geology from the University of Nebraska-Lincoln, and his J.D. degree from the University of Oregon. He is a Judge Advocate General Corps (JAG) with the United States Air Force.
The couple is making their home in Spokane, Wash.