Highlights from Joe Biden's almost 50 years at Democratic conventions

Joe Biden has traveled to all but one Democratic National Convention over the past 48 years, playing a supporting role for the party's nominee. This year the convention is coming home to him – he'll be in Wilmington, Delaware, Thursday evening to accept the nomination for president. CBS News 2020 campaign reporter Bo Erickson joins CBSN from Wilmington with some of the highlights of Biden's long DNC history.