At the
2011 state election, Lee was elected as member for Parramatta, traditionally a strong
Labor seat. Going into the election, Labor held Parramatta with a majority of 13.1 percent, which would have normally made it a safe Labor seat. However, as a measure of the size of the massive Coalition wave that swept New South Wales that year, Lee picked up a swing of 25.8 percent, large enough to turn Parramatta into a safe Liberal seat. He later said that could not have won—and certainly not with as large a swing—without winning over dozens of people who had never voted for a Liberal before. He was re-elected in
2015 and
2019, becoming the first non-Labor member since the 1950 state election to have held the seat for more than one term. Prior to the
2019 New South Wales state election in May, Lee served as Parliamentary Secretary to the Premier, Western Sydney and Multiculturalism from 1 Feb 2017 to 23 Mar 2019. Following the 2019 state election, Lee was appointed as the Minister for Skills and Tertiary Education in the second Berejiklian ministry, with effect from 2 April 2019. Amid an
Independent Commission Against Corruption investigation into former sports minister
John Sidoti in September 2019, Lee was appointed Acting Minister for Sport, Multiculturalism, Seniors and Veterans until the preliminary investigation concluded. Sidoti later resigned from Cabinet in March 2021 and "Lee will continue to act in those portfolios until I determine a replacement in the near future," according the NSW Premier
Gladys Berejiklian. Following the October 2021 election of
Dominic Perrottet as Leader of the NSW Liberal Party and his appointment as Premier, Perrottet reshuffled the ministry with effect from December 2021, where Lee was appointed as Minister for Corrections. In 2023, he was appointed professor at Western Sydney University's School of Business. Lee is non-executive director of the Community Migrant Resource Centre, chair of the Governing Council of the Sydney Polytechnic Institute, and non-executive director of AFEA. ==References==