Trump, leading the pack of Republican White House contenders, revived a flash point issue that he brought up last week when he issued a warning about campaigning with former president Clinton after Hillary deplored Trump’s inflammatory rhetoric.

The message was an ominous one: Bill Clinton’s history of marital infidelity will be a drag on his wife’s campaign to become the first female commander-in-chief in US history.

“If Hillary thinks she can unleash her husband, with his terrible record of women abuse, while playing the women’s card on me, she’s wrong!” Trump posted to his five million Twitter followers.

Hours earlier, the billionaire real estate mogul noted how Clinton “has announced that she is letting her husband out to campaign but he’s demonstrated a penchant for sexism, so inappropriate!”

And in a Sunday interview on Fox News Trump declared Bill Clinton “fair game, because his presidency was really considered to be very troubled because of all the things that she’s talking to me about.”

The remark referred to a recent interview that Hillary Clinton gave to Iowa’s Des Moines Register, in which she said Trump had “demonstrated a penchant for sexism” after he used vulgar language to criticize Clinton’s 2008 campaign loss to Barack Obama, and declared her bathroom break at the latest Democratic debate “disgusting.”

During the debate Clinton accused Trump of being “ISIS’s best recruiter,” referring to the self-described ISIS extremist group, and said the radical terrorists were using videos of Trump’s anti-Muslim remarks as a recruiting tool.

Trump demanded an apology, but none was given; AFP reported.

S/SH