Senate Democrats called the necessity of developing a succession plan for presidential nominee Hillary Clinton “ridiculous” and “crazy” on Tuesday, after a former chief party official floated the idea in light of the former secretary of state’s health woes.

Don Fowler, who served as national chairman for the Democratic National Committee under Bill Clinton, cautioned that there “should be a plan to identify a successor for Hillary Clinton, in case she were incapable of carrying on her campaign for the presidency” in an interview published by Politico on Monday. “You’d be a fool not to prepare,” he said.