Aaron Schock, the former Republican representative from Illinois whose taste for first-class travel and a “Downton Abbey”-themed office design led to questions about his judgment and adherence to spending rules, was indicted on Thursday by a federal grand jury on 24 counts, including wire fraud and theft of government funds.

The indictment came after his lawyer, George J. Terwilliger III, said in a statement that the charges were expected and described them as a “misuse” of prosecutorial power by the Justice Department.