Former Vice President Joe Biden is expected to join the crowded 2020 Democratic presidential race next week.
The decision answers one of the most significant outstanding questions of the early presidential primary season, which has already seen announcements from 18 high-profile Democrats. Biden, 76, would be the oldest and most experienced politician in the race.
His plans were confirmed by three people with knowledge, who insisted on anonymity because they were not authorized to speak publicly. The announcement is expected as early as Wednesday and would cap months of deliberation over his political future.
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The specific launch date and location is unclear. Biden is likely to quickly make visits to early-voting states.
One person said Biden's advisers are also considering an early event in Charlottesville, Virginia, the site of a deadly clash between white supremacists and counterprotesters in 2017. The location would be intended to draw a contrast between Biden and President Donald Trump, who initially said there were some "very fine people on both sides" of the violent confrontation.
Biden has been particularly outspoken against the rise of white supremacy in the Trump era.
One of the most recognizable names in U.S. politics, Biden served as Barack Obama's two-term vice president after nearly four decades as a Delaware senator. His high-profile, working-class background and connection to the Obama years would help him enter the race as a front-runner, although he faces questions about his age and whether his more moderate record fits with a party that has become more liberal.
With a record in elected office that stretches half a century, Biden faces multiple challenges.
Last month he struggled to respond to claims he touched 2014 Nevada lieutenant governor nominee Lucy Flores' shoulders and kissed the back of her head before a campaign event. A few other women have made similar claims, though none has alleged sexual misconduct.
The incident is just a taste of the harsh vetting from both parties expected for Biden, who has run for president twice before but never from such a strong political starting point.
His first White House bid in 1988 ended after a plagiarism scandal. And in recent weeks, he was repeatedly forced to explain his 1991 decision, as Senate Judiciary Committee chairman, to allow Anita Hill to face questions about her allegations of sexual harassment against Clarence Thomas, then a nominee for the Supreme Court.
Biden has since apologized for his role in the hearing. But in the #MeToo era, it's another example of why critics believe he may struggle to catch on with the Democratic primary voters of 2020.
On paper at least, however, he may be well positioned to take on Trump in a general election.
The Republican president's allies have privately warned that Biden might be the biggest threat to Trump's re-election given Biden's potential appeal among the white-working class in the Midwest, the same region that allowed Trump to win the presidency.
Associated Press writers Steve Peoples and Jonathan Lemire in New York contributed to this report.