LOS ANGELES, Calif.–Mayor Antonio Villaraigosa’s senior press secretary announced today she is leaving Los Angeles for her native Chicago to be the communications director for that city’s police department.

Sarah Hamilton will step down from the Los Angeles mayor’s staff on Friday. She will start her new job in mid-August.

Hamilton has worked for Villaraigosa since March 2009, handling press duties through three years of budget crises, the selection of Los Angeles police Chief Charlie Beck, the attack on a San Francisco Giants fan at Dodger Stadium and, most recently, the “Carmageddon” freeway closure.

Before coming to Los Angeles, Hamilton coordinated media for Secretary of State Hillary Clinton’s 2008 presidential campaign and was deputy director of communications for the Clinton Foundation for 4 1/2 years.

“Working in the Villaraigosa administration has been fantastic, and it is an honor to have played even a small role in the phenomenal work this mayor is doing for this city,” Hamilton said.

“It is bittersweet to leave Los Angeles, but as a Chicago native, I am very excited to return to the city where I grew up and serve its residents by working in Mayor (Rahm) Emanuel’s administration.”