Joe Biden has named California junior senator Kamala Harris as his running mate Tuesday, making her the first woman of color to appear in a major political party's presidential ticket.

 "I've decided that Kamala Harris is the best person to help me take this fight to Trump and Mike Pence and then to lead this nation starting in January 2021," Biden said in an email.

According to CNN, Biden and Harris are set to appear side by side for the first time for a speech Wednesday in Delaware. It is not yet clear what time the speech will take place.

In choosing Harris, Biden chose to add a former rival to the Democratic ticket. Harris was unsuccessful in her bid last year for the White House, noted Los Angeles Times.

She centered her former campaign on her readiness to take on Donald Trump and show Americans that she would fight for them.

Who is Kamala Harris?

Harris has been widely seen as the front-runner in becoming Biden's vice presidential pick before the announcement was made.

New York Times said in their report that Harris is the daughter of two immigrant academics. Her mother is Indian-American while her father is from Jamaica.

She was raised in California and attended Howard University in Washington. She worked in criminal justice before becoming the second Black woman to ever be elected to the Senate.

She worked as California attorney general and had four years of experience in the U.S. Senate.

Her credentials make her among the most conventionally qualified of the women under consideration as Biden's running mate. The pool, in itself, is thought of as the most diverse crop of contenders ever.

 "I need someone working alongside me who is smart, tough, and ready to lead. Kamala is that person," Biden said.

She memorably drew sharp contrasts with Biden in the past. But the decision to have her as running mate would say that the former vice president has set aside their friction, reported Fox News.

Who Did Biden Consider?

Biden had told before that he was considering picking a woman to join him in the Democratic ticket. Harris, 55, is now the third woman to be a VP pick for a major political party.

Those who came before her are Geraldine Ferraro, Democratic pick in 1984, and Sarah Palin, Republican pick in 2008.

Before her selection, though, the process that Biden went through unfolded at utmost secrecy. He met with some 11 women for the post. According to CNN's sources, he and his aides spent some time on Tuesday making calls to the prospects he did not choose.

The calls include California Rep. Karen Bass, Georgia Democrat Stacey Abrams, Illinois Sen. Tammy Duckworth, Massachusetts Sen. Elizabeth Warren, New Mexico Gov. Michelle Lujan Grisham and Florida Rep. Val Demings.

Harris and former Obama national security adviser Susan Rice were among those seen as the most serious prospects.

Biden, 77, is aware that voters are concerned with his age. In picking Harris, who is 20 years younger, he believed he became "a bridge" to a new slate of Democratic leaders.

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