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'New Normal' Is Here Until U.S. Gets Vaccine, Summers Says

Jun.26 -- Lawrence H. Summers, former U.S. Treasury Secretary, cautions that the spike in Covid-19 cases is the reality the U.S. has to deal with until a viable vaccine is available. He criticizes the localized approach to handling the resurgence of new cases, calling it a "fundamental national security problem." He joins David Westin for an exclusive take on "Bloomberg Wall Street Week."