Iran's leader made the claim less than a week before the president-elect returns to the White House. In his first term, Trump took a tough line on Iran.

Donald Trump's presidential inauguration is scheduled to begin at noon ET. According to the U.S. Constitution's 20th Amendment, each presidential inauguration should take place Jan. 20, unless that date falls on a Sunday. Then, the president takes the oath of office in private Jan. 20, and the public event is moved to Jan. 21.

President-elect Donald Trump's Inauguration Day on Jan. 20 is less than a week away. Here's what will take place and suggestions for how you might snag tickets to attend.