When President Trump returns to Washington in the new year, one of the first moves he could make is killing the Iran Nuclear Deal. He will only have a few weeks before coming up against legal deadlines to impose sanctions against Tehran.

Eugene Scott, Political Reporter at The Washington Post, breaks down the deadlines the president faces. On the campaign trail, President Trump promised to undo what he called the "worst deal ever."

The Obama-era deal lifted U.S. and European sanctions on Iran in exchange for limits on Tehran’s nuclear program. Many lawmakers and foreign policy advisers to the president are trying to persuade President Trump not to kill the deal. However, he did not take those same policy advisers' advice when it came to moving the U.S. Embassy in Israel to Jerusalem.