In the past, Dr. Anthony Fauci has said he'd like to see more than 75% of Americans get the vaccine. Now, Fauci and others public health experts like former FDA commissioner Scott Gottlieb are saying the U.S. might never reach that number. If that's the case, how should policymakers guide the return to normal? Rick Kriseman, Dr. Ali Khan and Joseph Allen join Meghna Chakrabarti.