(Trent Nelson | The Salt Lake Tribune) Mask exemption cards at a rally outside of the Granite School District offices in South Salt Lake on Saturday, April 10, 2021. Rallies were announced for all Utah school district offices by a coalition of groups opposed to mask mandates.(Trent Nelson | The Salt Lake Tribune) Lisa Davis hands out t-shirts in front of the Granite School District offices in South Salt Lake on Saturday, April 10, 2021. Rallies were announced for all Utah school district offices by a coalition of groups opposed to mask mandates.(Trent Nelson | The Salt Lake Tribune) Lisa Davis hands out t-shirts in front of the Granite School District offices in South Salt Lake on Saturday, April 10, 2021. Rallies were announced for all Utah school district offices by a coalition of groups opposed to mask mandates.(Trent Nelson | The Salt Lake Tribune) Mask exemption cards at a rally outside of the Granite School District offices in South Salt Lake on Saturday, April 10, 2021. Rallies were announced for all Utah school district offices by a coalition of groups opposed to mask mandates.