LOS ANGELES—A federal judge ruled Dec. 9 that Mark Ridley-Thomas, the suspended Los Angeles city councilman, will go to trial for his corruption case Aug. 9, 2022, as residents of his district grow frustrated with their lack of representation. Ridley-Thomas, who oversaw district 10, was suspended from office by a divided Los Angeles City Council on Oct. 20 after he and Marilyn Flynn, former dean of the University of Southern California’s (USC) School of Social Work, were indicted on 20 counts of bribery and fraud on Oct. 13. In November, a federal judge heard a summary of the prosecution’s case and requested that both sides agree on a trial date. Ridley-Thomas’s suspension from the city council means that his constituents have been left without representation since October. Karly Katona, Ridley-Thomas’s chief of staff, was appointed “caretaker” of the district Nov. 1 in Ridley-Thomas’ absence. Katona, however, does not have the …