McLean made history when she became the first Member of the
Legislative Assembly of Alberta to give birth while in office. She gave birth to a baby boy, Patrick, on February 12, 2016. McLean's pregnancy sparked questions around the logistics and rules of the Alberta legislature around pregnancy, maternity leave, and support for new parents in the legislature. An all-party committee was created with a mandate to review and make recommendations on maternity leave and making the Legislature more responsive to members' family obligations. After serving in the Alberta Legislature, McLean moved to
Colwood, British Columbia, and returned to practicing law. On March 31, 2025, she was named the Liberal candidate for the riding of
Esquimalt—Saanich—Sooke. She went on to win in the
2025 federal election, receiving 49.4% of the vote. ==Electoral history==