There shall be an Attorney-General elected by the qualified voters of the State, on general ticket, on the Tuesday next after the first Monday in the month of November, nineteen hundred and fifty-eight, and on the same day, in every fourth year thereafter, who shall hold his office for four years from the time of his election and qualification, and until his successor is elected and qualified, and shall be re-eligible thereto, and shall be subject to removal for incompetency, willful neglect of duty or misdemeanor in office, on conviction in a Court of Law.