Washington DC, April 25, 2019 – Former U.S. Vice President Joe Biden, a moderate who has made his appeal to working-class voters who deserted the Democrats in 2016 a key part of his political identity, launched a bid for the White House on Thursday as the party’s instant frontrunner.

Biden announced the third presidential bid of his career by video on YouTube and other social media, drawing a stark contrast between himself and President Donald Trump in a contest he said was a fight for the future of American democracy.

“We are in the battle for the soul of this nation,” he said. “I believe history will look back on four years of this president and all he embraces as an aberrant moment in time. But if we give Donald Trump eight years in the White House, he will forever and fundamentally alter the character of this nation, who we are, and I cannot stand by and let that happen.”

Trump responded in a post on Twitter, slamming Biden’s “intelligence” and vowing to meet him “at the Starting Gate” if the Democrat wins his party’s “nasty” nomination fight.

Biden, 76, had been wrestling for months over whether to run. His candidacy will face numerous questions, including whether he is too old and too centrist for a Democratic Party yearning for fresh faces and increasingly propelled by its more vocal liberal wing.

Biden starts as leader of the pack in opinion polls of a Democratic field of 20 contenders seeking a chance to challenge Trump, the likely Republican nominee, in November 2020.

Critics say his standing in polls is largely a function of name recognition for the former U.S. senator from Delaware, whose more than four decades in public service includes eight years as President Barack Obama’s No. 2 in the White House.

Obama’s spokeswoman Katie Hill said in a statement that Obama has long said selecting Biden to be his running mate in 2008 was one of the best decisions he ever made. The statement fell short of a formal endorsement, but said Obama relied on Biden’s insight, knowledge and judgment through both election campaigns and his entire presidency.

Biden will travel across the country in the coming weeks to detail his plans to rebuild the middle class, kicking off his tour with a visit on Monday to Pittsburgh, his campaign said.

On May 18, he will hold a rally in Philadelphia to “lay out his vision for unifying America with respected leadership on the world stage—and dignified leadership at home,” it said.

Pennsylvania, not far from Biden’s home state of Delaware, is a key battleground state and former industrial hub that backed Trump in 2016. The Republican president is seeking to capture the state again even as Democrats saw wins there in the 2018 midterm congressional election.

Democratic U.S. Senators Chris Coons of Delaware and Bob Casey of Pennsylvania threw their support behind Biden in statements early on Thursday.

‘THREAT TO NATION’

As speculation about his bid mounted, Biden faced new questions about his propensity for touching and kissing strangers at political events, with several women coming forward to say he had made them feel uncomfortable.

Biden struggled in his response to the concerns, at times joking about his behavior. But ultimately, he apologized and said he recognized standards for personal conduct had evolved in the wake of the #MeToo movement.

Trump and his allies seized on the flap, attempting to weaken the incumbent president’s likely top rival before Biden entered the race.

Even so, Biden was determined to push forward, arguing that his background, experience and resume best positioned him to take on Trump next year.

In his announcement on Thursday, Biden held up the example of the August 2017 attack at a white nationalist rally in Charlottesville, Virginia, that killed a female counter protester as a defining moment for the nation.

“It was there … we saw (Ku Klux) Klansmen and white supremacists and neo-Nazis come out in the open … bearing the fangs of racism,” Biden said, criticizing Trump’s remarks at the time that there were “very fine people on both sides.”

There was no moral equivalence between racists and those fighting such inequality, he said.

“In that moment, I knew the threat to this nation was unlike any I had ever seen in my lifetime,” said Biden.

Biden’s candidacy will offer early hints about whether Democrats are more interested in finding a centrist who can win over the white working-class voters who backed Trump in 2016, or someone who can fire up the party’s diverse progressive wing, such as Senators Kamala Harris of California, Bernie Sanders of Vermont, or Elizabeth Warren of Massachusetts.

His long history in the Senate, where Biden was a leading voice on foreign policy, will give liberal activists plenty to criticize. As Senate Judiciary Committee chairman, he angered women’s rights activists with his handling of sexual harassment allegations against Clarence Thomas during the justice’s 1991 Supreme Court confirmation hearings.

He also has been censured over his ties to the financial industry, which is prominent in his home state of Delaware, and for his authorship of a 1994 crime act that led to increased incarceration rates.

Biden has been one of the party’s more aggressive Trump critics. Last year, he said he would have “beat the hell” out of Trump if the two were in high school because of the way the president has talked about women. That prompted Trump to call him “Crazy Joe Biden” and to claim on Twitter that Biden would “go down fast and hard, crying all the way” if they fought.

Biden later lamented the exchange, saying: “I shouldn’t get down in the mosh pit with this guy.”

Known for his verbal gaffes on the campaign trail, Biden failed to gain traction with voters during his previous runs in 1988 and 2008.

He dropped his 1988 bid amid allegations he had plagiarized some of his stump oratory and early academic work. But his experience and strong debate performances in 2008 impressed Obama enough that he tapped Biden as his running mate.

Biden decided against a 2016 presidential bid after a lengthy public period of indecision following the death of his son Beau of brain cancer in May 2015. Beau had urged him to run.

Biden faces similar family considerations this time around as he continues to cope with Beau’s demise, while his other son, Hunter, has gone through a divorce.