How the ‘Rule of 90’ became a campaign calculation for RI's embattled incumbent governor • Rhode Island Current

How the ‘Rule of 90’ became a campaign calculation for RI's embattled incumbent governor • Rhode Island Current

Scott Conley, 53, a McKee supporter and regional vice president for the National Education Association of Rhode Island, has been a special education teacher at Davies Career and Technical High School in Lincoln for 21 years. (Photo by Laura Paton/Rhode Island Current)To many Rhode Islanders, the “Rule of 90” sounds like an obscure lesson from high school geometry. Not to Scott Conley. The 53-year-old special education teacher at Davies Career an…