Colorado governor signs 4 gun control bills months after Colorado Springs massacre

Colorado's governor signed four gun control bills Friday, following the lead of other states struggling to confront a nationwide surge in violent crime and mass shootings.

Before the ink was even dry on Gov. Jared Polis' signature, gun rights groups sued to reverse two of the measures: raising the buying age for any gun from 18 to 21, and establishing a three-day waiting period between the purchase and receipt of a gun. The courts are already weighing lawsuits over such restrictions in other states. The U.S. Supreme Court recently issued a ruling that expanded Second Amendment rights.

The new laws, which Democrats pushed through despite late-night filibusters from Republicans, are aimed at quelling rising suicides and youth violence, preventing mass shootings and opening avenues for gun violence victims to sue the long-protected firearm industry. They were enacted just five months after a mass shooting at an LGBTQ club in Colorado Springs.