Photo credits: Evan Vucci/Associated Press, Doug Mills/The New York Times; Ariel Zambelich for The New York Times; Brian Snyder/Reuters; Matt Rourke/Associated Press; pool photo by Tom Williams; Rebecca Noble for The New York Times; Aaron Schwartz/EPA, via Shutterstock; Mike Segar/Reuters; Damon Winter/The New York Times; Ryan Collerd/Agence France-Presse — Getty Images; Rebecca Cook/Reuters; Jim Watson/Agence France-Presse — Getty Images; Michael M. Santiago/Getty Images; Haiyun Jiang for The New York Times, CNN, Fox News; Timothy A. Clary/Agence France-Presse — Getty Images; Paul Sancya/Associated Press; John Bazemore/Associated Press; pool photo by Jabin Botsford; Lucas Jackson/Reuters; David Dee Delgado/Reuters; Pool photo by Jonathan Newton; Mandel Ngan/Agence France-Presse — Getty Images