Holder: DOJ, FBI should reject Trump's requests
GOP rep: Trump wouldn’t last very long under torture
Hunter, who served three overseas tours in Iraq and Afghanistan after the Sept. 11, 2001, terrorist attacks, was responding to Trump's previous criticism of Sen. John McCain's (R-Ariz.) imprisonment in Vietnam.
"Not very long," Hunter said when asked by HBO's Bill Maher on his show "Real Time."
"He'd probably torture his torturers, talking about the election. 'Nobody thought I'd get to 300,' " said Maher, mocking Trump over his electoral college win in 2016.
Trump in 2015 dismissed McCain's time in a prisoner-of-war camp during the Vietnam War.
"He was a war hero because he was captured," Trump joked at the time. "I like people who weren't captured."
Hunter described Trump's comment as "pretty bad," and added that he made similar remarks in the context of a conversation with friends.
"I've made the same John McCain joke with my friends, who are other Marines. ... 'If I were a better pilot, I wouldn't get shot down.'... I've made that joke. But I make it to my friends not on national TV as the contender for the U.S. presidency. It shouldn't be done," he said.