New York Gov. Andrew Cuomo (D) on Friday pleaded with President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE to "do something" about gun violence after a shooting at a Texas high school left at least 10 dead and others injured.

In a letter, addressed to Trump and members of Congress, Cuomo listed seven major shootings starting with the 1999 Columbine High School shooting and ending with the Friday shooting in Santa Fe, Texas.

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“When is enough enough? How many more innocent people have to die before you act?” Cuomo wrote.

“You were elected to lead — do something,” he continued. “Your first responsibility is to the people of this country, not the NRA — do something. My heart breaks for the families who have to grieve from this needless violence — DO SOMETHING.”

He signed the letter “Andrew M. Cuomo. Father of Cara, Mariah and Michaela. Taxpayer. Governor of New York. NRA ‘F’ Rated Elected Official.”

.@realDonaldTrump DO SOMETHING



Sincerely,



Andrew M. Cuomo

Father of Cara, Mariah and Michaela

Taxpayer

Governor of New York

NRA "F" Rated Elected Official pic.twitter.com/e19h8hQkGE — Andrew Cuomo (@NYGovCuomo) May 18, 2018

Police said a suspected shooter is in custody and a person of interest had been detained in the Friday shooting at Santa Fe High School near Houston. Law enforcement also reported that they have found multiple explosive devices on campus, though no explosions had been reported.

Trump condemned the "horrific" attack during remarks at a prison reform summit, saying incidents like this have "been going on too long in our country."

"My administration is determined to do everything in our power to protect our students, secure our schools and to keep weapons out of the hands of those who pose a threat to themselves and to others,” he said.

Cuomo, a longtime advocate for stricter gun laws, restricted access to assault weapons and expanded background checks in New York with the 2013 SAFE Act.

In recent months, he has joined calls for stronger gun control and improved school safety after the February school shooting in Parkland, Fla., that left 17 dead.

He joined a student walkout in March to protest gun violence and has spoken out against the National Rifle Association.

New York also passed legislation earlier this year to strip residents convicted of domestic violence of all firearms, which Cuomo hailed as “common sense reform” that will make New York "safer and stronger."