FILE- In this Feb. 23, 2019, file photo, Cook County State's Attorney Kim Foxx speaks to reporters at the Leighton Criminal Courthouse after R. Kelly was ordered held on a $1 million bond, in Chicago. The Chicago police union's president alleges that the county's top prosecutor interfered with the probe of "Empire" actor Jussie Smollett before recusing herself and wants the Justice Department to investigate. WLS-TV in Chicago reports that Fraternal Order of Police President Kevin Graham wrote the Justice Department following reports that Foxx asked Police Superintendent Eddie Johnson to let the FBI investigate Smollett's allegations that he was attacked. (Ashlee Rezin/Chicago Sun-Times via AP, File)

FILE- In this Feb. 23, 2019, file photo, Cook County State's Attorney Kim Foxx speaks to reporters at the Leighton Criminal Courthouse after R. Kelly was ordered held on a $1 million bond, in Chicago. The Chicago police union's president alleges that the county's top prosecutor interfered with the probe of "Empire" actor Jussie Smollett before recusing herself and wants the Justice Department to investigate. WLS-TV in Chicago reports that Fraternal Order of Police President Kevin Graham wrote the Justice Department following reports that Foxx asked Police Superintendent Eddie Johnson to let the FBI investigate Smollett's allegations that he was attacked. (Ashlee Rezin/Chicago Sun-Times via AP, File)

CHICAGO (AP) — The Chicago police union’s president alleges that the county’s top prosecutor interfered with the investigation of “Empire” actor Jussie Smollett before recusing herself and wants the Justice Department to determine if she broke any laws.

WLS-TV in Chicago reports that Fraternal Order of Police President Kevin Graham wrote the Justice Department following reports that Cook County State’s Attorney Kim Foxx asked Police Superintendent Eddie Johnson to let the FBI investigate Smollett’s allegations that he was attacked by two masked men after the former chief of staff to former first lady Michelle Obama informed Foxx that Smollett’s family had concerns about the probe.

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The police kept the investigation and Foxx recused herself. Her office charged Smollett with lying to police.

Foxx’s office didn’t immediately respond to a request for comment.