Will Miller, president of The Wallace Foundation, gave three educational briefings on “Principals and other school leaders: The evidence base for their critical role in ESSA – with state examples” using this PowerPoint on May 10, 2017. The briefings were given to: U.S. Senator (Washington-D) Patty Murray and her staff; members of the staff of U.S. Senator Lamar Alexander (Tennessee-R); and Michael Gentile, majority clerk of the Senate’s Subcommittee on Labor, Health and Human Services of the Senate Committee on Appropriations.