A dozen governors, including Gov. Andrew Cuomo, on Tuesday called on President Donald Trump and Senate Majority Leader Mitch McConnell to take action on gun control legislation that includes a red flag law, strengthened background checks and a ban on assault-style weapons and high-capacity magazines.

“Putting an end to the gun violence epidemic is not a Republican or Democratic issue, it is an American issue. Gun deaths do not have to be the norm,” the governors wrote. “The time is now to break the cycle by enacting four common-sense measures.”

The letter was signed by Cuomo, along with the governors of California, Connecticut, Delaware, Illinois, Michigan, New Jersey, New Mexico, Oregon, Pennsylvania, Rhode Island, and Washington.

The letter comes after another spate of mass shootings around the country. Cuomo has challenged the Democratic candidates for president to make gun control a central issue of the campaign.