White House Chief Medical Advisor Dr. Anthony Fauci is warning state leaders that the nation’s battle with the coronavirus is still “not in the end zone.” He urged Americans to adhere to public health measures despite the ramp-up of vaccinations, pointing to new infection spikes in Europe as a cautionary tale of relaxing too soon. Dr. Scott Gottlieb, member of the boards of Pfizer and biotech company Illumina and former FDA commissioner, joined "Squawk Box" on Monday to discuss.