John G. Mulroe (born July 21, 1959) is a judge of the Circuit Court of Cook County and lawyer from Chicago, Illinois. Between August 2010 and June 2019, he was a Democratic state senator, representing the 10th Illinois State Senate District. He was appointed to complete the term of Democrat James DeLeo in August 2010 and elected to a full term in the Illinois State Senate in November 2010. He served in the position for nearly nine years before leaving the Illinois Senate in 2019. Robert Martwick replaced Mulroe in the Illinois Senate. 2008 judicial election John G. Mulroe was the president of the 41st Ward Democratic Organization and ran unsuccessfully in the 2008 Democratic primary for a judicial seat in Subcircuit No. 10 of the Cook County Circuit Court. In that election Mulroe finished second to Diana L. Kenworthy. Out of more than 42,000 ballots cast for the seat on the 10th Subcircuit, Mulroe received 16,513 votes (38.42%) to Kenworthy's 17,914 (41.68%). A third candidate, Rosaire Marie Hall, garnered 19.91% with 8556 votes. Kenworthy went on to win the general election. Illinois Senate 2010 Illinois State Senate election Mulroe was the 2010 Democratic candidate for the Illinois State Senate in the 10th State Senate District, a seat formerly held by retired Democrat James DeLeo, a 25-year veteran of the state legislature. He won the Democratic primary on February 2, 2010 against three other Democratic candidates, collecting a total of 10,036 votes. Those votes amounted to 42.5% of total votes cast. The other candidates collected 57.5% of the total; Tom Ryan had 24.5%, Mary Sendra Anselmo had 22.3% and Wanda Majcher finished with 10.7%. DeLeo chose to leave office in August 2010 and Democratic candidate John G. Mulroe was appointed to complete the remainder of his term. Mulroe ran for a full term in the November 2010 general election. Prior to his appointment to office, Mulroe's primary victory set up a general election contest with Chicago's only Republican alderman, Brian Doherty. During the primary election Mulroe received the endorsement of the Chicago Tribune's editorial board over the three other Democratic candidates. He also received numerous other endorsements from newspapers, unions and elected officials. Mulroe won election to a full term in the Illinois State Senate on November 2, 2010. His opponent, Doherty, conceded the election shortly after 9 p.m. on election night. As of November 5, 2010 Mulroe had collected