Leading Democratic presidential candidate Joe Biden called a Detroit factory worker “full of s—” in a testy exchange on gun policy Tuesday as voters cast ballots in Michigan’s crucial primary.

Video shared by reporters on Biden’s tour of the Detroit auto plant shows the former vice president surrounded by workers as he argued face to face with a man in a hard hat and an orange high-visibility vest.

The worker accused Biden of “actively trying to end our Second Amendment right.”

Biden immediately responded: “You’re full of s—.”

Biden was visiting with members of the International Brotherhood of Electrical Workers who are building a new Fiat Chrysler assembly plant.

“I support the Second Amendment,” Biden said in the clip. But “the Second Amendment — just like right now, if you yell ‘fire,’ that’s not free speech.”

“I have a shotgun, I have a 20-gauge, a 12-gauge,” Biden said. “You’re not allowed to own [just] any weapon. I’m not taking your gun away at all. You need 100 rounds?” 

The worker then claimed Biden had said he was going to take guns away.

“I did not say that! I did not say that!” Biden fired back, raising his voice.

The worker said he had heard Biden make that claim in a viral video.

“It’s a viral video like the other ones that came out” that were “lies,” Biden said.

“Don’t be such a horse’s a–,” Biden added as the exchange grew more heated.

The National Rifle Association quickly shared the video on Twitter. “Joe: Gun owners see through your lies,” the NRA’s official account tweeted.

Biden campaign spokesman Andrew Bates did not immediately respond to CNBC’s request for comment on the video. But Bates and other campaign surrogates retweeted numerous accounts praising Biden’s stance on gun reform. 

“We will literally pay them to keep promoting it,” Bates tweeted, referring to the Trump campaign.

The clash with a worker came as Biden worked to win Michigan’s primary — and the bulk of its 125 pledged delegates — and put more distance between him and Sen. Bernie Sanders, who fell behind in polls and delegates after Super Tuesday.

Biden is now considered the clear front-runner to clinch the Democratic nomination and take on President Donald Trump in November.

This is not the first time Biden has locked horns on the campaign trail. After a man in Iowa made baseless accusations about Biden’s son Hunter, the former vice president called the man “a damn liar” and “fat.”

A spokeswoman claimed at the time that Biden had said, “Look, facts,” not “Look, fat,” referring to the man.

WASHINGTON – The White House is not ready to roll out specific economic proposals in its response to the widening impact of the coronavirus outbreak, administration officials told CNBC.

The revelation comes as U.S. stock futures pointed toward a sharp rebound at the open Tuesday following the Dow’s 2,013-point drop Monday and President Donald Trump’s suggestion that a payroll tax cut and other stimulus measures may be in the works to mitigate economic damage from the virus’ spread. Trump has also invited Wall Street executives to meet at the White House on Wednesday to discuss the response.

However, inside the administration, some officials were stunned by Trump’s claim Monday that he would hold a press conference Tuesday to announce an economic plan. “That was news to everyone on the inside,” one official said.

The actual details of any plan remain up in the air. “It’s not there right now,” an official said. “A lot of details need to be worked out.”

The president’s schedule for Tuesday includes a 5:30 p.m. ET media briefing for his coronavirus task force.

In addition to the potential payroll tax cut, which faces skepticism from Senate Republicans, Trump also said that the administration would work with travel industry players, such as airlines and cruise lines, as travel restrictions and fears stemming from the outbreak take a toll on them. American Airlines on Tuesday, for instance, slashed international and domestic flights as demand craters.

Wage relief for hourly workers is also under discussion, but it would require big federal spending and there are no details about how such a policy would work, an official said.

The officials cited in this story declined to be named since plans were still being worked out.

Trump on Friday signed an $8.3 billion spending package aimed at supporting states and researchers.

Treasury Secretary Steven Mnuchin and Larry Kudlow, the president’s top economic advisor, are slated to head to Capitol Hill on Tuesday to brief Senate Republicans on some ideas and try to get a sense of what is possible. 

“The president has a strong point of view, and he’s looking forward to Senate reaction to that perspective,” a senior administration official said.

Another administration official making his views known in the coronavirus response is Peter Navarro, a key advisor to Trump on trade matters. Navarro joined a meeting of the president’s economic team Monday in the Oval Office, and then later appeared at Trump’s press briefing with the task force. Navarro is pushing the payroll tax cut as part of the coronavirus response, according to officials.

Navarro, who is not on the task force, did not immediately respond to a request for comment.

Navarro has been a divisive figure in the administration, due mainly to his outwardly hawkish views toward trade with China.

He has reacted to the coronavirus outbreak, which originated in China, by seizing it as an opportunity to explore shifting U.S. supply chains away from that nation. “All we’re doing here is seeing the chess board,” Navarro told Politico late last month. “This is a case where, for our public health and economic and national security, we need to do just that.”

Eamon Javers reported from Washington, while Mike Calia contributed from Englewood Cliffs, N.J.

China is now calling on the world to fight the epidemic together and saying that “rumors and prejudice” must go.

“The epidemic is a global challenge. The right move should be working together to fight it, which means no place for rumors and prejudice,” Zhao said at the same press briefing last week. “We need science, reason and cooperation to drive out ignorance and bias.”

Chinese foreign diplomats have also been on the defensive recently — most notably on Twitter, which is blocked in the mainland. China’s ambassador to South Africa said in a tweet on Sunday: “Although the epidemic first broke out in China, it did not necessarily mean that the virus is originated from China, let alone ‘made in China.'”

Global Times has pointed fingers at some countries which it said was “slow to respond” to the outbreak.

“Many countries are slow in responding to COVID-19. Coronavirus overwhelmed hospitals in Wuhan in a short time. China dispatched over 40,000 medical workers to support Wuhan,” the paper’s chief editor tweeted recently. “No other country has this mobilization capability. They must try utmost to prevent situation from worsening.”

State media has also said the world and the United States should “thank” China for taking extreme measures to contain the coronavirus, which would have otherwise spread even further, instead of imposing travel restrictions on Chinese citizens.

“Now, we should say righteously that the U.S. owes China an apology, the world owes China a thank you,” said an editorial on state news agency, Xinhua, which was translated by CNBC and which was first posted on the social media account of Huang Sheng, an investor. 

Cruise lines have also taken a hit. The government on Sunday warned that older adults and travelers with underlying health issues should avoid cruises, adding further pain to the already struggling industry.

“We are going to take care of and have been taking care of the American public and the American economy,” Trump said. 

“This was something that we were thrown into and we’re gonna handle it and we have been handling it very well,” Trump said of the U.S. response to the outbreak, which has been rising in severity since December.

The conference topped off a day of mixed messages from the administration after fell into a free-fall Sunday night.

On Monday morning, Health Secretary Alex Azar stressed in an interview on Fox News that the United States regards the situation with gravity, saying the coronavirus “is a very serious health problem. Nobody is trying to minimize that.”

But shortly after, as the stock market plunged, Trump downplayed the impact of the outbreak in a tweet.

“So last year 37,000 Americans died from the common Flu. It averages between 27,000 and 70,000 per year. Nothing is shut down, life & the economy go on,” he said. “At this moment there are 546 confirmed cases of CoronaVirus, with 22 deaths. Think about that!”

White House is inviting Wall Street executives to discuss the response to the outbreak, a meeting that Trump is expected to attend on Wednesday, ann administrative official told CNBC.

The coronavirus, which is believed to have originated in Wuhan, China, has spread to dozens of countries globally, with more than 113,000 confirmed cases worldwide and at least 3,996 deaths so far, according to data from Johns Hopkins University.

There have been at least 607 cases in the United States and at least 22 deaths, according to the latest tallies from John Hopkins University. 

The outbreak has roiled markets and led governments to take drastic actions as it rapidly spreads across the globe.