'Nailed' it: Obama's role in Biden picking Kamala Harris for VP

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Many Democrats eye Kamala Harris joining Joe Biden’s ticket as a key to renewing the Obama coalition, and the former President has been enlarging his role as a surrogate and teammate for Biden in the 2020 race. Former Obama pollster Cornell Belcher discusses the Harris news and the Obama connection, including his praise for how Biden “nailed this decision,” with MSNBC’s Ari Melber and Zerlina Maxwell.