The Brady Campaign to Prevent Gun Violence, one of the nation’s largest gun-safety advocacy groups, endorsed Hillary Clinton for President on Tuesday.

Brady Campaign president Dan Gross endorsed the former secretary of state during a campaign stop at Iowa State University in Ames, Iowa (Clinton is pictured with Gross, left, and New York Gov. Andrew Cuomo).

“Doing what I do, I’ve had the chance to meet a lot of politicians and elected officials, including a number of those currently running for president,” Gross said at the event, according to a press release. “And I can say with certainty that when it comes to real national leadership on this issue there is so clearly one candidate that rises above all the others – and that candidate is Hillary.”

The Brady Campaign was founded by Sarah and Jim Brady. Brady was a member of Ronald Reagan’s administration who was shot in the head and paralyzed when a gunman attempted to kill the former President.

Gross also bashed Sen. Bernie Sanders (I-VT) in his endorsement speech.

“There is only one candidate who was fighting alongside this organization when we passed the historic, lifesaving Brady Bill – Bernie Sanders actually voted against it – but there is only one candidate who fought for it – and that candidate is Hillary,” Gross said.