Amazon warehouse workers could vote to unionize next month: CNBC After Hours

CNBC.com's MacKenzie Sigalos brings you the day's top business news headlines. On today's show, CNBC.com's Annie Palmer breaks down the effort among workers in an Alabama Amazon warehouse to unionize. Plus, CNBC.com's Pippa Stevens dives into one of the defining stock market themes of 2020, and whether or not it will continue in 2021.