Former US President Bill Clinton will campaign for his wife and Democratic frontrunner Hillary Rodham Clinton in the primary state of New Hampshire.

The Clinton camp confirmed on Monday that the former commander-in-chief will make his first campaign trip on Jan. 4, appearing in a pair of rallies in Nashua and Exeter, The Hill reported.

"He knows the people of New Hampshire want a president who will create shared prosperity, so that everyone has a chance at a brighter future," read the press release. "He knows Hillary Clinton is prepared to do that job."

The announcement came after Republican frontrunner Donald Trump hurled a series of attacks against the former president, referencing his past affair with intern Monica Lewinsky and other sexual misconduct during Clinton's stint in the White House.

While the verbal jousting between Trump and Hillary Clinton has been well-documented throughout the presidential nomination process, things got a little bit personal earlier this month when Trump used a vulgar Yiddish word to describe Clinton's loss to Obama in the 2008 election.

In an interview with The Des Moines Register, Clinton was asked if Trump's comments have something to do with her gender. She responded by saying, "I think he has to answer for what he says, and I assume that others will make the larger point about his language. It's not the first time he's demonstrated a penchant for sexism."

Trump then retaliated on Twitter, directing Clinton's own words against her husband.

When Trump recently learned Bill will be hitting the campaign trail with Hillary first thing next year, the brash billionaire quickly noted that he isn't a tad bit concerned.

The latest Wall Street Journal/ NBC News poll found that Bill Clinton remains very popular with the general public. The former president garnered a positive rating of 56 percent while accumulating a negative rating of only 26 percent.

Ever since his wife, Hillary, announced her presidential candidacy last spring, Clinton has remained in the shadows, instead focusing his time on the family's non-profit organization.

He played a much vocal role in his wife's campaign back in 2008, often lambasting her rivals as he passed by early nominating states. At times, his spontaneous comments would leave the campaign doing damage control.