 Taddeo entered politics in 2008 when she ran against Congresswoman Ileana Ros-Lehtinen in Florida's 18th Congressional District, which then included parts of coastal Miami-Dade and the Florida Keys.Taddeo was unopposed in the Democratic primary but lost to Ros-Lehtinen in the general election, 58 to 42%.Two years later, Taddeo ran for an open seat on the Miami-Dade County Commission.