Des Moines - Republican presidential candidate Jeb Bush says he once got an email asking whether he would kill the baby Adolf Hitler if it were possible.
"It said, 'If you could go back in time and kill baby Hitler, would you? I need to know,'" Bush told a Huffington Post reporter on the Bush campaign bus in New Hampshire last week.
Bush's answer, according to the video clip: "Hell, yeah, I would. Look, you gotta step up man."
Bush wryly tweeted on Monday: "Gotta do it," referring to the Huffington Post item.
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The typically dry-humoured Bush, labelled by rival Donald Trump as "low energy," has shown a more carefree side lately.
Bush has recently been publicizing his new book, "Reply All," a collection of stories told through the emails he received as governor of Florida from 1999 to 2007.
Bush shared with reporters during the recent New Hampshire trip other odd emails he'd received, including one from a University of Wyoming email address asking Bush to help him find some toilet paper.
"Funny person," Bush said, recalling the email.