A look at Biden's potential running mates: Stacey Abrams, Sally Yates, Michelle Lujan Grisham, and Gretchen Whitmer

Presumptive Democratic nominee Joe Biden is expected to announce his pick for vice president next week. CBS News political correspondent Ed O'Keefe joined CBSN with more on some of the contenders: Stacey Abrams, Sally Yates, Michelle Lujan Grisham, and Gretchen Whitmer.