Anti-gun violence advocate and Marjory Stoneman Douglas High School shooting survivor Emma Gonzales, center, takes part in the “End of School Year Peace March and Rally” in Chicago on June 15, 2018. The students from the Parkland, Fla. school have become vocal anti-gun advocates but a more conservative Supreme Court may stymie their efforts.

Anti-gun violence advocate and Marjory Stoneman Douglas High School shooting survivor Emma Gonzales, center, takes part in the “End of School Year Peace March and Rally” in Chicago on June 15, 2018. The students from the Parkland, Fla. school have become vocal anti-gun advocates but a more conservative Supreme Court may stymie their efforts