Mike Gravel's former campaign manager reflects on end of run
Former Alaska Sen. Mike Gravel officially ended his 2020 presidential bid by endorsing Sen. Bernie Sanders and Rep. Tulsi Gabbard. The campaign was almost entirely run by teenagers on social media. One of those teens, Gravel's former campaign manager David Oks, joins CBSN's "Red & Blue" to talk about how he convinced the 89-year-old to run in the first place.