K-12 teaching is among the most heavily unionized profession, but unions aren't monolithic—their strength is shaped by a multitude of factors. Teachers in Portland, Oregon gather to press the state legislature for more funding on April 10, 2019
Northside American Federation of Teachers President Melina Espiritu-Azocar, right, speaks with middle school teacher Celeste Simone during a Microsoft AI skill-building event on Sept. 27, 2025, in San Antonio. As use of generative AI ramps up, it could affect the integrity of the portfolios teachers have to assemble in many states to meet licensing requirements.<br/>