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.
- Russia won't be banned from the Rio Olympics but its athletes need to pass new anti-doping tests to compete, the IOC ruled.
- ISIS has claimed responsibility for a bombing that killed at least 80 people in Afghanistan Saturday.
- Hillary Clinton made her debut with VP pick Tim Kaine, who dipped into Spanish and spoke on support for immigration reform and gun control.