Secret Service Investigating Trump Adviser for Alleged Clinton Threat

The Secret Service is investigating a Donald Trump adviser who said in a radio interview that presumptive Democratic presidential nominee Hillary Clinton should be "shot for treason" on a "firing line."

Al Baldasaro, a New Hampshire representative who serves on Trump's veterans' coalition and as a Trump delegate at the Republican National Convention in Cleveland, said in an interview with a Boston talk radio host that Clinton should pay for the 2012 Benghazi attack.

"She is a disgrace for any, the lies she told those mothers about their children that got killed over there in Benghazi," he said on the Jeff Kuhner Show Tuesday. "She dropped the ball on over 400 emails requesting back up security. Something's wrong there."

"Hillary Clinton should be put in the firing line and shot for treason," he continued.

His comments about Clinton were first reported by Buzzfeed.

The House Select Committee on Benghazi issued its final report recently, saying Clinton and other state department officials should have realized that the consulate and CIA annex were not safe ahead of the 2012 attack. The Clinton camp called the report a "partisan sham."

Asked about Baldasaro's comments, Secret Service spokesman Robert Hoback said the agency is "aware of this matter and will conduct the appropriate investigation."

Baldasaro did not immediately return a request from ABC News for comment.