Governor Andrew Cuomo has long complained New York’s gun control efforts can only go so far. In fact, he has noted they stop at the state’s border.

On Saturday, Cuomo launched a renewed national effort to urge the Democratic presidential candidates to embrace his gun control plan — dubbed the “Make America Safer” campaign — to address the issue on the federal level.

The effort is taking shape in the form of a social media campaign that will focus on engagement on gun control. Cuomo made the announcement with the backing of advocates from national gun control groups Everytown for Gun Safety, Moms Demand Action, and March for Our Lives.

“As the federal government continues to abdicate its responsibility to protect the people in this country, by failing to take action on meaningful, common sense gun control, it is now more important than ever to have a leader in Washington that has a plan to tackle these issues and end this violence once and for all,” Cuomo said in a statement. “That is why I’m asking all Democrats running for president to make a simple, clear choice for the American people and sign the ‘Make America Safer Pledge.'”

Cuomo on Saturday held the second of three gun control conferences, with Saturday’s event focusing on teachers, school administrators, and parent representatives, to discuss the implementation of the state’s new “red flag” law — which is meant to keep guns away from people deemed to be a danger to themselves or others.

Cuomo’s gun control platform includes a ban on assault-style weapons and high-capacity magazines, a national version of the red flag measure, universal background checks for gun purchases, and the creation of a mental health database.

Gun control has been a signature issue for Cuomo; such as his passage of the 2013 package of gun laws known as the SAFE Act — which was considered a key measure during his first term.

“New York state passed these laws six years ago and they have worked,” Cuomo said. “No legal gun owners’ rights have been violated, but unnecessary, dangerous weapons are off the streets and dangerously mentally ill people cannot buy guns. We were the laboratory, and now it must be done on the national level. And if a candidate can’t support this pledge, I don’t believe they should be running for president as a Democrat.”