Trump, Clinton react to explosions as UN General Assembly begins

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In the wake of the bombings over the weekend in New York and New Jersey, there are questions over how the contrasting reactions of Donald Trump and Hillary Clinton will impact voters’ views of their approaches to national security. Meanwhile Clinton and Trump are back on the campaign trail, meeting with world leaders at the United Nation’s General Assembly, as President Obama speaks out on the election. NBC national correspondent Peter Alexander reports for TODAY.