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Sen. Cory Booker (D-N.J.) is officially running for president in 2020.

In a video posted to a newly-launched campaign website Friday, Booker said, "I believe we can build a country where no one is forgotten, no one is left behind," and one where "our criminal justice system keeps us safe instead of shuffling more children into cages and coffins." He concludes by saying that "we will channel our common pain back into our common purpose."

Booker is the latest Democrat to jump into the 2020 race alongside Sen. Kamala Harris (D-Calif.), Sen. Elizabeth Warren (D-Mass.), and Sen. Kirsten Gillibrand (D-N.Y.), among others. But unlike Warren and Gillibrand, Booker did not start things off with an exploratory committee. "He's all in," a campaign source told Yahoo News.

Following his announcement, Booker has several radio interviews lined up and is expected to appear Friday on The View. He will subsequently head to Iowa and South Carolina for events next week, The New York Times reports.

Watch Booker's announcement below. Brendan Morrow