What will happen during Donald Trump’s first 100 days in the White House?

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When he was on the campaign trail, repealing and replacing Obamacare, shaping a more conservative Supreme Court and building a Mexican border wall were some of the many things President-elect Donald Trump vowed to put at the top of his White House to-do list. But now that he’s won the election, how realistic are those goals? NBC’s Hallie Jackson reports for TODAY from the White House.