Deval Patrick on why he can "break through" crowded 2020 field

First on "CBS This Morning," the newest Democrat who wants to take on President Trump next fall is former Massachusetts Gov. Deval Patrick. He joins 17 other Democratic candidates already in the race. Patrick has been a CBS News political contributor, but in light of his decision, we are discontinuing this relationship. Patrick joins "CBS This Morning" to discuss why he's running.