Columbia University Senior Lecturer in Political Science Elise Giuliano previews the impending summit between President Donald Trump and Russian President Vladimir Putin in Alasaka, saying Putin has already achieved a victory just by having the summit without Ukraine. Giuliano believes the US has leverage, and President Trump needs to exercise it as much as possible. She talks with Carol Massar and Emily Graffeo on Bloomberg's "Businessweek Daily." (Source: Bloomberg)
