Rush has been sharply critical of former Vice President Joe Biden in the wake of comments in which he recalled working alongside two segregationist Southern senators. Rush told Politico that Biden, another Democratic presidential candidate, was "wholly out of touch and woefully ignorant of the nuances of the black American experience." Rush will serve as Harris' Illinois campaign co-chair.
Rush said Harris was "the only candidate prepared to fight for all Americans against a Trump Administration that has left them behind" and that she is a "once-in-a-lifetime leader" who "exemplifies what global leadership is all about."
Endorsements from the caucus, which counts more than 50 members, could be influential in the Democratic presidential primary. With Rush's endorsement, Harris now has six endorsements from the CBC.