A New Hampshire state representative who advises Donald Trump on veterans’ issues called Tuesday for Hillary Clinton to be “put in the firing line and shot for treason” for her handling of the Benghazi terror attack.

Appearing on WRKO radio from the Republican National Convention in Cleveland, state Representative Al Baldasaro, a Londonderry Republican, called the presumptive Democratic nominee “a piece of garbage.”

Baldasaro likened Clinton to Jane Fonda, the actress who famously visited Hanoi as part of her opposition to the Vietnam War.

“She is a disgrace . . . for the lies that she told those mothers about their children that got killed over there in Benghazi,” Baldasaro said of Clinton. “She dropped the ball on over 400 e-mails requesting backup security. Something’s wrong there.”

“This whole thing disgusts me,” Baldasaro said. “Hillary Clinton should be put in the firing line and shot for treason.”

The retired Marine first sergeant, who has scolded the political media for what he called unfair coverage of Trump, has been an outspoken supporter of the GOP nominee since before his home state’s first-in-the-nation primary in February.

Asked Wednesday in a telephone interview if he stood by his comments, Baldasaro replied, “Without a doubt.”

“When you take classified information on a server that deals with where our State Department, Special Forces, CIA, whatever in other countries, that’s a death sentence for those people if that information gets in the hands of other countries or the terrorists,” he said. “As far as I’m concerned, that’s information for the enemy. In the military, shot, firing squad. So I stand by what I said.”

In the Constitution, treason is defined as “levying war against [the United States], or in adhering to their enemies, giving them aid and comfort.”

Baldasaro added, “Freedom of speech is a beautiful thing. I spoke my mind about how I feel. She’s not above the law. Any other State Department employee or veteran did the same thing, they’d be in jail.”