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Cruz and Perry, who ran for president in 2012, are set to speak on May 3, according to The Dallas Morning News.

Cruz and Perry have both been outspoken critics of additional gun restrictions even as President Obama and a number of Congressional lawmakers advocate passing new legislation to prevent shooting massacres similar to the one in Newtown, Connecticut in December that resulted in 28 dead.

Cruz, a member of the Senate Judiciary Committee, which handles gun legislation, has argued against new gun legislation. Cruz also sent a letter to Chicago Mayor Rahm Emanuel (D) criticizing Emanuel's "anti-gun crusade."

Perry also said a set of anti-gun violence executive actions unveiled by Obama would be in effective.

"Guns require a finger to pull the trigger," Perry said in the statement responding to Obama's executive actions. "The sad young man who did that in Newtown was clearly haunted by demons and no gun law could have saved the children in Sandy Hook Elementary from his terror."

Cruz and Perry's appearance at the NRA convention come as legislators continue to work to pass new gun legislation. Sen. Charles SchumerCharles SchumerOvernight Cybersecurity: Trump defends Flynn, blasts leaks | Yahoo fears further breach Overnight Finance: Trump's Labor pick withdraws | Ryan tries to save tax plan | Trump pushes tax reform with retailers Democrats declare victory after Puzder bows out MORE (D-N.Y.) recently decided to move ahead with gun background check legislation after Sen. Tom CoburnTom CoburnCoburn: Trump's tweets aren't presidential The road ahead for America’s highways Rethinking taxation MORE (R-Okla.), who had been Schumer's partner in bipartisan talks on a background check bill, walked away from the negotiations.