An off-hand remark Jeb Bush made Tuesday afternoon on the funding of women’s health issues has Hillary Clinton fuming. And her vocal response has prompted a public feud between the two well-known, presidential candidates.

“Just today we got another window into what Republican candidates really believe. Jeb Bush said he’s not sure we need half a billion dollars for women’s health issues,” Clinton said Tuesday night during an organizing event in Denver.

“Now, he’s got no problem giving billions of dollars away to super-wealthy and powerful corporations, but I guess women’s health just isn’t a priority for him.”

Clinton’s remark came just hours after Bush’s unscripted gaffe, where he said, “I'm not sure we need a half a billion dollars for women's health issues,” during a discussion on Planned Parenthood.

Bush, a former two-term Florida governor, later released a statement on his website admitting he “misspoke,” but Clinton’s campaign was quick to jump on the remark.

“.@Jeb Bush: You are absolutely, unequivocally wrong,” Clinton’s campaign tweeted.

Soon after, Bush’s campaign tweeted right back: “.@HillaryClinton what’s absolutely, unequiv