CNBC.com's MacKenzie Sigalos brings you the day's top business news headlines. On today's show, CNBC's Phil LeBeau breaks down the just-announced partnership between Nikola and General Motors. Plus, CNBC's Meg Tirrell explains why nine leading pharmaceutical CEOs made a pledge to prioritize safety during Covid-19 vaccine development.

0:43 - Wall Street's sell-off deepens
1:33 - Nikola & GM team up
4:26 - CNBC Soundcheck
6:34 - 'Historic' vaccine pledge
10:57 - Numbers Round

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