FRESNO (AP) — A physician whose father left the California Legislature six years ago is competing with a Fresno city councilman for a vacant seat in the state Assembly that’s critical to Democrats’ goal for a two-thirds majority. Democrat Joaquin Arambula, an emergency room doctor, and Republican Clint Olivier, a former reporter and Marine Corps Reserve radioman, are sparring to fill the remaining eight months of former Democratic Assemblyman Henry Perea’s term. Perea endorsed Arambula to succeed him before he left office in December to take a job in the pharmaceutical industry.