County Controller

Aichele successfully ran for the office of Chester County Controller in 1997. Aichele defeated two other candidates in the primary, including future State Representative Duane Milne, and succeeded retiring Republican incumbent Joseph Carpenter.^[5]

County Commissioner

After serving two terms as County Controller, Aichle sought and was elected to a seat on the Chester County Board of Commissioners in November 2003. She was re-elected four years later.^[2]

She briefly ran for the Republican nomination for lieutenant governor in 2010, but withdrew from the race several months before the election.^[6]

State Senate special election

In 2006, State Senator Bob Thompson died from pulmonary fibrosis at the Hospital of the University of Pennsylvania.^[7] Thompson, a longtime political force, had been re-elected to his 19th District Senate seat in 2004 without opposition. Aichele received the nomination of the county Republican Party for the May special election and squared off against her fellow County Commissioner Andy Dinniman. In what was considered a stunning upset, Dinniman defeated Aichele by twelve percentage points to become the first Democrat to represent Chester County in the State Senate since 1890.^[8][9]

Secretary of the Commonwealth

Incoming Governor Tom Corbett announced his intention to nominate Aichele for the position of Secretary of the Commonwealth in January 2011. Aichele resigned from the Board of Commissioners later that month and served as Acting Secretary until her nomination was unanimously approved by the State Senate in April. She served until January 20, 2015.^[1][3]