Toni Preckwinkle is the Cook County Board President, a position she has held since 2010. As the leader of the Cook County government, she oversees a budget of billions of dollars and manages various services, including public health, criminal justice, and social services. Preckwinkle is known for her focus on fiscal responsibility and efforts to improve the efficiency of county operations. Before becoming Board President, Preckwinkle served as a member of the Chicago City Council, representing the 4th Ward. She has a background in education and public policy, holding a degree from Chicago State University. Throughout her career, she has been an advocate for social justice and community development initiatives.