Four northeastern states agreed this week to share registries of people banned from purchasing guns, The New York Times reports.

New York, New Jersey, Connecticut and Rhode Island will now share information such as the names of individuals with warrants out for their arrest and those with mental health issues who have been barred from buying guns.

The decision came days after a deadly shooting at a South Florida high school renewed an intense debate over the nation's gun control laws.

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“This is a federal government that’s gone backwards on this issue,” New York Gov. Andrew Cuomo (D) said Thursday, according to the Times. “President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE has pledged allegiance to the [National Rifle Association] and he’s delivered for them.”

Officials said that the effort would expand the information that they share across state lines, according to the Times. States are already supposed to report criminal and other information to the National Instant Criminal Background Check System.

A memorandum of understanding signed by the governors of each of the states, all Democrats, said the states would share details on how weapons are trafficked and sold within state lines and select universities to collaborate on gun violence research, the Times reported.

President Trump signaled support this week for strengthening the national background check system, as well as raising the minimum age for purchasing guns.

But Trump also highlighted a proposal to arm trained teachers and do away with gun-free zones around schools — proposals that Democrats consider non-starters.