Dr. Scott Gottlieb: Biden's July 4 vaccine goal is 'probably achievable'

President Joe Biden on Tuesday announced his administration’s latest goals in the fight against the coronavirus: getting 70% of U.S. adults to receive at least one dose of a Covid vaccine and having 160 million adults fully vaccinated by July 4. Dr. Scott Gottlieb, member of the boards of Pfizer and biotech company Illumina and former FDA commissioner, joined "Squawk Box" on Wednesday to discuss.