One year after a shooter injured then-candidate Donald Trump at a rally in Butler, Pennsylvania, Sen. Rand Paul called for congressional oversight of the Secret Service, complaining of a “cultural cover-up” that he claimed masked critical security failures before the attack.

The Kentucky Republican, chair of the Homeland Security Committee, told CBS’ Margaret Brennan on “Face the Nation” that “somebody was begging” for security in both writing and phone calls but was repeatedly denied resources by the Secret Service.

“They did not want to assess blame or look internally, and they wanted to discount any of their actions that may have led to…

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