It will be up to districts whether they want to allow teachers to be armed. Critics of the bill said it could make classrooms more dangerous to students.
To help meet its ambitious climate goals, California is paying farmers to grow cover crops. The aim is to promote healthier soil that can absorb more carbon from the atmosphere.
Close ties between vendors and election officials are getting extra attention as states plan to spend hundreds of millions of dollars on new voting machines by next year.
U.S. border agents improperly look for broad evidence of crimes when they search international travelers' phones and laptops without probable cause, civil rights groups argue.
In Puerto Rico, May Day has become an important day for people to protest the austerity measures being imposed by a federally appointed oversight board.
The House overwhelmingly passed a bill Tuesday that could become the country's most restrictive abortion ban. It would make it a crime for doctors to perform abortions at any stage of a pregnancy.
Riley Howell is credited with disrupting the campus shooting, dying in the incident but saving others' lives. Police say they have not determined the shooter's motive.
NPR's Ailsa Chang talks with Sen. Marsha Blackburn, R-Tenn., member of the Senate Judiciary Committee, about Attorney General William Barr's testimony on special counsel Robert Mueller's investigation.