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What to expect from Marco Rubio

Though Florida Sen. Marco Rubio was unable to obtain Romney's vice presidential nod, Melissa Harris-Perry and her guests, including author Manuel Roig-Franzia, former Louisiana Gov. Buddy Roemer, HuffPost Live host Alicia Menendez, The Washington Post's Jonathan Capehart, and The Heritage Foundation's Israel Ortega, talk about how they expect to see more of Rubio to come.