In a possible terrorist attack Wednesday afternoon, a vehicle rammed into a crowd of pedestrians outside the British Parliament in London. A man then exited the vehicle and stabbed a police officer to death; other officers then shot and killed the assailant.
After one of the most contentious presidential campaigns in memory, Donald J. Trump will be sworn in as President of the United States on Friday, January 20, 2017. Inaugural events are scheduled throughout the weekend. Here is a look at what to expect: