Second gun control group endorses Clinton

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A second prominent gun control group is backing Hillary ClintonHillary Rodham ClintonOvernight Defense: Pentagon hails Fallujah's recapture | Texts to VA suicide hotline went unanswered Overnight Energy: U.S., Mexico, Canada to team up on clean energy The Trail 2016: Warren takes VP batting practice MORE for president.

The Brady Campaign to Prevent Gun Violence will endorse the Democratic candidate during a campaign event Tuesday morning in Iowa.

“Hillary Clinton has been a national leader on gun violence prevention for decades,” Brady President Dan Gross said in a statement. 

"More than any candidate on either side of the aisle, she has the experience, record, and demonstrated commitment to help reach the Brady Campaign’s goal of cutting gun deaths in half by 2025,” Gross said. 

This comes one day after former Rep. Gabby Giffords (D-Ariz.), who now heads the gun control group Americans for Responsible Solutions, and her husband, retired astronaut Mark Kelly, endorsed Clinton.

Giffords became a gun control advocate after surviving a 2011 mass shooting in Tucson, Ariz., where she took a bullet to the head.

The endorsements from gun control groups are piling up for Clinton, who is seen as much stronger on guns than her Democratic challenger, Sen. Bernie SandersBernie SandersThe Trail 2016: Warren takes VP batting practice Less than half of Texan Sanders fans would back Clinton Five things we learned from first Warren-Clinton appearance MORE (Vt.).

"She was with us when we passed the Brady Bill in 1993 ... and now she’s made gun violence prevention a centerpiece of her campaign,” Gross added.