OKLAHOMA CITY, Oklahoma, Oct. 5 -- Sen. Markwayne Mullin, R-Oklahoma, issued the following news release: Today, U.S. Senator Markwayne Mullin (R-OK) announced that following his advocacy efforts, Oklahoma Public School Resource Center has been selected to receive $55 million in grant funding over the next five years through the U.S. Department of Education's Charter School Program Grant to allow the continued growth of quality charter schools in Oklahoma. "Offering high-quality education options for the next generation is the most significant more PR