Schools across the country are teaching students how to respond to active shooters. Many have adopted the Department of Homeland Security's "run, hide, fight" strategy.
Americans own more guns per capita than any other country, and firearms contribute to the bulk of homicides nationwide.
At least six people have been taken to hospitals following a shooting at Saugus High School in Santa Clarita, California.
Some police officers in Georgia have new form of training: Brazilian jiujitsu
Billionaire hedge fund manager Leon Cooperman and JPMorgan Chase CEO Jamie Dimon have criticized presidential hopeful Elizabeth Warren for "vilifying" the rich.
Minnesota Sen. Amy Klobuchar takes a top-spot in the 2020 democratic field in this week's 2020 rankings from CNN's Chris Cillizza.
During a White House meeting, Turkish President Erdogan shows Republican senators and President Donald Trump a propaganda video casting the Kurds in a negative light. CNN's Wolf Blitzer and Joe Johns have the details.
Otis Ferguson grew up dreaming of going to Howard University, where his family had gone before him.
CNN's Evan McMorris-Santoro watched the first public hearing in the impeachment inquiry into President Donald Trump with voters in the swing-state Wisconsin.
Kellyanne Conway, Counselor to the President, argued that there was "nothing new" in the first public hearing of the impeachment inquiry — despite the top US diplomat in Ukraine revealing a previously unknown conversation involving President Donald Trump. CNN's John King fact-checks Conway.
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