WATCH: Cory Booker joins pack of Democratic presidential hopefuls

WATCH: Cory Booker joins pack of Democratic presidential hopefuls

Transcript for Cory Booker joins pack of Democratic presidential hopefuls

across the country have been accused of abuse. Now to the 2020 race. Senator Cory booker announcing his presidential bid joining the Democrat field that includes Kirsten gym Gillibrand and kamala Harris. Reporter: Senator Cory booker launching his campaign for president from his own front steps in Newark, New Jersey. His next door neighbor cheering him on. I always say I got my ba in Stanford, but my phd on the streets of Newark. Reporter: Booker looking to carve out his place in an already crowded democratic field. I’m the only senator who goes home to a low-income, inner city community. The first community that took a change on me. Reporter: He’s the fourth senator to get into the race and the second avenue American to launch his came pan as black history month gets under way. Oh, what’s up, Oakland? Reporter: Senator kamala Harris kicking off her campaign in Oakland to a crowd of 20,000 people. Kyra Phillips joins us from Washington. Another senator apologizing tonight. Elizabeth Warren apologizing to the cherokee nation to prove her native American ancestry. This is an about face for Warren who spent months standing by her actions. Kyra, thank you. New developments the planned foxconn factory in Wisconsin.

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

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