In an interview with a group of African American journalists, former Vice President Joe Biden pledged that if he was to end up as the Presidential nominee of the Democratic Party, he would select a Vice Presidential running mate who was either a woman or a person of color.
This is, if it indeed occurs, quite a revolutionary step, and it gives us the following list of potential Vice Presidential nominees:
Senator Amy Klobuchar of Minnesota
Senator Kamala Harris of California
Senator Elizabeth Warren of Massachusetts
Senator Cory Booker of New Jersey
Former Housing and Urban Development Secretary and San Antonio Mayor Julian Castro of Texas
Entrepreneur Andrew Yang of New York
Former Georgia Gubernatorial nominee Stacey Abrams of Georgia
It would seem highly unlikely that Elizabeth Warren would be asked or accept, and being the oldest potential nominee at age 71 in 2020, alongside Biden, who would be 78, is highly unlikely.
It also seems unlikely that Andrew Yang would be tapped, as he has no government experience.
Stacey Abrams was rumored months ago to be a potential Vice Presidential nominee, but without any state level executive experience or Congressional or other federal government experience, it would seem highly unlikely.
So the bet would seem to be either Amy Klobuchar, shoring up the Midwest support, which is crucial, or Julian Castro, with his mayoral experience in a large city in Texas, and his cabinet office experience. Also, Castro was on the short list for Hillary Clinton, and being that the Latino population is the largest minority in America, and that he has an inspiring story of growing up in poverty without a father present, makes him very appealing. Castro might also put Texas into play for the election.
Harris might not wish to be number 2 on the ticket, and there is no need for California to be concerned about in the election. And Cory Booker comes from the same Northeast as Biden, so seems highly unlikely to be selected, plus there already has been an African American male President, Barack Obama.