March 10: 100,000 marched from Union Park to Federal Plaza in Chicago but organizers say that about 250,000- 500,000 actually marched.[1] March 24: 20,000 marched to Senator Jon Kyl's office in Phoenix.[33] Tens of thousands of workers participate in a work stoppage in Georgia.[34] March 25: more than 500,000 (casual police estimate) march in downtown Los Angeles,[35] but organizers claim more than 1.25 million based on photographic analysis [36] March 26: 7,000 people rallied at the Statehouse in Columbus, Ohio.[37] March 27: Hundreds of high school students walk out of class in protest in Northern Virginia .[38] March 29: 8,000–9,000 marched from The Coliseum to Legislative Plaza in Nashville.[39] March 30: Robert Pambello, the principal of Reagan High School in Houston, placed a Mexican flag below the American and Texan flags and was ordered to remove it. He later resigned from his position for apparently unrelated reasons.[40] In South West Houston, high school students from Robert E. Lee High, Bellaire High, Sam Houston High School (joining from Houston's Northside) and other middle schoolers joined in a march that was taken to city hall.[41] March 31: 3,000 high school and middle school students in Las Vegas walk out of class to protest. Some college and community college students join them on their protest.[42]