As the National Rifle Association’s leadership is roiled by a leadership crisis amid allegations of financial mismanagement, President Donald Trump and Gov. Andrew Cuomo traded barbs over who is to blame.

Trump in a tweet on Monday morning blamed Cuomo and Attorney General Letitia James for the NRA’s legal woes. Cuomo is suing the gun-rights group over a type of insurance the organization offers. James’s office is investigating the NRA’s finances, a probe the reportedly touched off a leadership battle within the group and led to Oliver North not seeking another term as its president.

“The NRA is under siege by Cuomo and the New York State A.G., who are illegally using the State’s legal apparatus to take down and destroy this very important organization, & others,” Trump posted to Twitter. “It must get its act together quickly, stop the internal fighting, & get back to GREATNESS – FAST!”

Cuomo in a statement in response pointed to the mass shootings in the U.S. since 2012 and knocked the president on the issue.

“President Trump: Since December 2012 there have been 2,029 mass shootings in the United States. 74,600 Americans have died from gun violence since you were elected. You have done nothing but tweet about it,” Cuomo said.

“The scourge of gun violence is a national crisis plaguing our country and killing our children. It demands action. And action, Mr. President, requires true leadership.”

Cuomo has embraced gun control legislation, ranging from the SAFE Act to a bill approved earlier this year that is meant to take guns away from those deemed to be a danger to themselves or others.

“The only thing illegal is the gun lobby’s insurance scheme. Unlike you, President Trump, New York is not afraid to stand up to the NRA. I will continue to fight for the children of this state,” Cuomo said. “As for the NRA, we’ll remember them in our thoughts and prayers.”