“I never used anything for personal gain,” Arizona Gov. Rose Mofford said in defending her expenditure of thousands of dollars in state funds on gifts and other items, including diet food, a $530 watch and a joke-writing service. The Maricopa County Attorney’s office said it will broaden a continuing investigation into Mofford’s finances while she served as secretary of state. Mofford, 65, became governor April 4 when elected Gov. Evan Mecham was convicted in a Senate impeachment trial. The state constitution bars the state from giving anything of value to an individual without public benefit, and state law makes unauthorized expenditures of public funds a felony.