Wieckowski served as chair of the Assembly Judiciary Committee. He was also a member of the Assembly Insurance, Health, and Public Employees, Retirement and Social Security committees.
In his first term in office, Wieckowski passed 24 bills through the legislature, 21 of which were signed into law by California GovernorJerry Brown. He launched the Made in California Jobs Initiative to expand California manufacturing, invest in biotechnology research, and fight for small businesses.
Wieckowski lives in Fremont with his wife, Sue Lemke, and her son Luke. Wieckowski's parents are Gene and Helen Wieckowski.[4]