Joe Biden announces 2020 run

The former vice president becomes the 20th Democrat to enter the race in an announcement video he opened by quoting from the Declaration of Independence.
4:37 | 04/25/19

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Transcript for Joe Biden announces 2020 run
Also a big moment here for vice president, former vice president Joe Biden. He just released that announcement making it official saying he is running for president. Robin, you'll sit down with him soon. Yes, I'll head to Pittsburgh for that and I will sit down with the former vice president and his wife, Dr. Jill Biden. That will be next week and looking forward to that and he has a lot to say and can't wait to hear what he has to say, George. Coming up next week. This morning, he made it official moments ago. I want to go straight to Terry Moran. Good morning, Terry. Reporter: Good morning, George. Joe Biden spent 36 years in the United States senate in this building but he spent a lot of time thinking about running for president. He's run twice before and today he jumped into the 2020 race with a bold appeal to bedrock American values. Joe Biden jumping into the 2020 race for president with a stark and stunning video announcement. Images of white supremacists marching in charlottesville framing his vision of what's at stake. We're in a battle for the soul of this nation. The core values are standing in the world. Everything that has made America America is at stake. That's why today I'm announcing my candidacy for president of the United States. Reporter: Biden is taking direct aim at president trump. 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 watch that happen. Reporter: And the former vice president is sounding a theme of Progressive patriotism pledging a fight on first principles. We can't forget wt happened in charlottesville. Even more important, we have to remember who we are. This is America. Reporter: This morning's announcement coming after months of speculation as Biden's campaign was clearly ramping up thinking about it for decades. In 2008 his late son battled brain cancer and he urged his father to run so Biden is now fulfilling his son's wish as he enters a crowded and diverse field. He is the 20th democratic hopeful. And while he is a deeply familiar face to Americans he's been in politics for nearly half a century, under president Obama dubbed uncle Joe affectionately his own style could be a liability. Several women came forward this year describing unwelcome physical contact from Biden like touching and kissing. They didn't accuse him of sexual harassment but say it made them feel unequal. He promised to change with the times and change his style. The boundaries of protecting personal space have been reset and I get it. I will be more mindful and respectful of people's personal space. Reporter: So Joe Biden will pair his message of fighting Progressive populism with a rebuilding the middle class message, one of his first events at a local steam territories union hall in Pittsburgh. That lunch pail labor union politics he's championed so long. What a choice by the former vice president, the first word in the video is charlottesville taking on president trump directly and the comments that president trump made coming out of charlottesville. Want to show more of the video right now. Some very fine people on bode sides, very fine people on both sides? Those words, the president of the United States assigned a moral ee quiver lens between those spreading hate and those with the courage to stand against it. And in that moment I knew the threat to this nation was unlike any I had ever seen in my lifetime. You know, most of the other democratic candidates have had to spend more time speaking about themselves. Joe Biden is so familiar he can go straight to the general election in some ways. Reporter: That's it exactly. This is a message that unites all Democrats and it's an important message for Democrats. Donald Trump injected a new kind of nationalism into American politics, some would call it a reactionary nationalism. Biden is trying to frame a Progressive nationalism that sometimes Democrats have been reluctant to make that kind of argument. He is going full bore on it. Terry, thanks very much. A brand-new race. A very crowded race and already weighing in. See if he can catch up with the fund-raising out there. A lot of people already have a lot of money. The first 24 hours is really important. We will see those later. Former vice president Biden will be on "The view" and robin will interview he and his wife on Tuesday.

This transcript has been automatically generated and may not be 100% accurate.

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