Mayoral candidate Garry McCarthy became the latest candidate to hit the airwaves, with his first ads touting his commitment to public safety, while a 13th candidate officially joined the ballot. State Rep. Theresa Mah, the first Asian American elected to the Illinois General Assembly, backed Hilario Dominguez in the race to replace retiring Ald. Danny Solis (25), and Bill Daley extended his cash advantage over his rivals, reporting $430,000 in contributions.