1. UPDATED — April 16, 9:30 p.m. ET:
2. Vice President Joe Biden is now on Instagram. His username: @VP (of course). His first photo: Aviators (of course).
5. BONUS! Biden posted a selfie with the President Wednesday night.
- Donald Trump was sworn in today as the 45th president of the United States of America. 🇺🇸
- Over 90 people have been arrested as anti-Trump protesters and police clash in Washington, DC, during the inauguration.
- As one of his first acts as president, Donald Trump announced the end of certain Obama administration climate and pollution rules.
- US officials didn't know drug lord Joaquín "El Chapo" Guzmán was being extradited from Mexico to the United States until the day it happened.