Michael Phelps on saving water, mental health and hanging with Lil Wayne at SNL

10:49am PST - November 27th, 2019    lil wayne - MSNBC

Michael Phelps, the most decorated Olympian ever, talks to MSNBC’s Ari Melber about his environmental initiative with Colgate to advocate for water conservation and better habits for daily consumption; opens up about his work on mental health; and discusses h…