Repräsentantenhaus von Kentucky
Westrom was first elected to represent District 79 in the Kentucky House of Representatives in 1998. In the 2016 Kentucky House of Representatives election for District 79, Westrom defeated Ken Kearns with 59.4% of the 20,064 votes cast (11,909–8,155). She won the 2020 Kentucky House of Representatives election for her district, defeating Jon Larson, who conceded the race in-person at Westrom's Lexington home. , the Democratic congresswoman was on ten legislative committees.