The Vermont senator also said any Supreme Court nominee would have to be "100 percent" in favour of the Roe v. Wade decision.
Biden said he would be "clobbered by the press" for saying he considered a Republican running mate, but confirmed that it was true.
A poll by USA Today and Suffolk University found that over a third of Republican voters would support Haley replacing Pence as Trump's running mate in 2020.
Pence told Fox News that he was "not only confident" that he'd be on the 2020 ticket, but that he was also "confident that we're going to win in 2020."
"[Trump] has an enormous problem with women, suburban women particularly. He's entirely transactional; loyalty is a one-way street," Steve Schmidt said, suggesting that Haley's memoir, 'With All Due Respect,' was entirely motivated by her efforts to stay in the president's good graces.
"Ivanka hides behind her $5,000 dresses and $10,000 bags. Vice President Pence has mastered hiding behind his professed evangelical humility," David Jolly said.
Walter Mondale, who was vice president under Jimmy Carter, also branded President Donald Trump a liar and said his administration is dividing the country.
Vice President Mike Pence on Tuesday defended his wife from criticism over her decision to teach at an anti-LGBTQ Christian school.
Is this a better alternative to the Wilhelm scream?
Former vice president and current 2020 Democratic presidential candidate Joe Biden is being hit with criticism Thursday over a 2015 video showing him offering nuanced praise: "I actually like Dick Cheney."
Biden's endorsement of a public option comes after Bernie Sanders, another Democratic presidential candidate, reintroduced his Medicare for All plan earlier this month.
"Trump is an utter hypocrite," Barbra Streisand tweeted.
"Not once—never—did I believe I acted inappropriately," Biden said in a new statement on Sunday.
"My brain couldn't process what was happening. I was embarrassed," wrote Lucy Flores. "I couldn't move and I couldn't say anything. I wanted nothing more than to get Biden away from me."
Dick Cheney pressed Mike Pence on several of the Trump administration's foreign policy decisions, including the president's hardline approach toward America's NATO allies and his decision to withdraw troops from Syria.
Vice President Mike Pence also said it was freedom, not slavery, that ended two World Wars, ignoring the role played by the communist Soviet Union.
Troops loyal to embattled Venezuelan President Nicolás Maduro blocked U.S. aid convoys at the Colombian border on Saturday.
Pence paused and looked down, appearing to expect an applause. But only silence followed.
South Bend Mayor Pete Buttigieg says Pence embarrassed the state of Indiana as governor.
The former vice president has admitted that he's a "gaffe machine"—but will it hurt his chances in 2020?
A poll suggests more than 30,387,000 Americans have no idea who the vice president is.
"You could open the government tomorrow," Chris Wallace repeated several times.
"Criticism of Christian education in America should stop," the vice president has said.
Chad Begielin, co-writer and lyricist for "The Prom," invited Pence to check out the musical.
"I wonder if I sit real still if people will even notice I'm here," the imagined inner monologue mused.
Former Vice President Joe Biden said he's not ruling out a 2020 U.S. presidential bid against Donald Trump and will likely come to a decision by the end of the year.