Second Democratic debate highlights: Biden, Booker, and De Blasio spar over President Obama's immigration record; and Gillibrand pushes Bill De Blasio on Eric Garner's death. Tulsi Gabbard comes for Kamala Harris, who responds by calling Gabbard an Assad apologist. David Dennis Jr. LIVE on newly released tape putting Reagan's racism on blast, an Oklahoma woman's disturbing arrest due to a broken taillight, and a black 10 year old boy being charged for playing dodgeball. Trump Administration moves to tighten asylum rules, working with Mexico and Guatemala to block migration.