Fmr. Vice President Al Gore weighs in on President Trump's policies

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NBC News’ Andrea Mitchell sat down with former Vice President Al Gore to discuss storms and rising sea levels, President Trump’s Puerto Rico comments, trade penalties and more. Gore also weighs in on President Trump’s war with the justice department. “We have gone through worse times. We have bounced back before,” he said. “These elections this November may turn out to be the beginning of a course correction.”