The duties of the Mayor Pro Tempore are similar to those of a Vice Mayor, in that he/she conducts official city business in the absence of the Mayor. Kortsen has been a member of the Casa Grande City Council since 2007 and is currently serving her second term on the City Council. This is also her second time serving as Mayor Pro Tempore.
Mayor Pro Tempore Kortsen was raised in Casa Grande and has lived here for more than 50 years. She attended Central Arizona College and the University of Arizona.
Kortsen served on the Stanfield Elementary School Board from 1978 -1986, Casa Grande Regional Medical Center Board of Directors from 1984 -1997, and as Chairman of the Desert Valley Care Center from 1993 to 1997.