The case hinged on Montana’s ‘green amendment,’ which guarantees a constitutional right to ‘a clean and healthful environment.’ Other states have similar amendments, and more are considering them.
Montana state Rep. Zooey Zephyr raises a microphone on the House floor as protesters chant, “Let her speak,” in April 2023.
Amy Beth Hanson/AP
Thomas Jefferson, the third president of the United States, first established a set of political decorum rules in legislatures to help establish stability during the country’s early years.