Saying he is acting "out of an abundance of caution," Chief U.S. District Judge Mark Walker said he is postponing all of his civil trials until the coronavirus pandemic is under control and the number of new COVID-19 cases and deaths in Florida has dropped.

Walker's order Monday came in a lawsuit involving the National Rifle Association. The gun-rights group is challenging a Florida law, passed in the aftermath of the 2018 mass shooting at a Parkland high school, that prevents people under age 21 from buying guns.