A member of the Republican Party of Minnesota, she represented District 57A, which included portions of the cities of Apple Valley and Lakeville in Dakota County, which is in the southeastern part of the Twin Cities metropolitan area.

[8] During her first two terms, the Apple Valley-based seat was numbered Minnesota House District 37A.

[11][12] She worked for the Minnesota House as a legislative assistant to Rep. Matt Dean and Rep. Joe Hoppe prior to her election.

[1] On August 25, 2015, a park ranger cited Mack for "public nuisance" for allegedly "making out" with fellow Minnesota State Representative Tim Kelly in Lebanon Hills Regional Park.

"[16][17] On September 14, 2015, Mack apologized to law enforcement for her handling of the situation and resigned from the House Ethics Committee.