Melissa DeRosa, a fixture next to Gov. Andrew Cuomo for months during his coronavirus news conferences, resigned late Sunday on the heels of a report that found Cuomo sexually harassed 11 women, leaving the governor without his top aide as he faces the prospect of impeachment. DeRosa, who had been one of Cuomo’s most fierce defenders and strategists, said in a statement sent to multiple new organizations that serving the people of New York had been “the greatest honor of my life.” But she added that “Personally, the past two years have been emotionally and mentally trying.”