Parkland attack fueled big shift in America's gun politics

Last year's shooting at a Florida high school sparked a movement among a younger generation angered by gun violence and set the stage for a significant shift in America's gun politics.

Thousands of student protesters took to the streets and inspired hashtags such as #NeverAgain and #Enough. They also mobilized to register a new generation of voters.

Candidates were emboldened too. Many of them confronted the issue in the midterm elections and were rewarded with victory over incumbents supported by the National Rifle Association. That helped Democrats take back control of the House.

As the one-year anniversary of the shooting approaches, the legacy of the massacre remains an ever-present force in the nation's politics and gun laws.