Christine Lagarde says Donald Trump's recent foreign policy is a "betrayal" of his own mantra. She speaks to @zannymb about America's retreat from global leadership and whether the world's middle powers are ready to step up and fill the void. Watch the full interview:

Christine Lagarde says Donald Trump's recent foreign policy is a "betrayal" of his own mantra. She speaks to @zannymb about America's retreat from global leadership and whether the world's middle powers are ready to step up and fill the void. Watch the full interview:

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