Rishi Sunak will become Britain's new prime minister and the first person of color to lead the country. WSJ’s David Luhnow explains how the former investment banker quickly rose through the ranks to head one of the world’s largest economies. Photo illustration: Ryan Trefes More from the Wall Street Journal: Visit WSJ.com: http://www.wsj.com Visit the WSJ Video Center: https://wsj.com/video On Facebook: https://www.facebook.com/pg/wsj/videos/ On Twitter: https://twitter.com/WSJ On Snapchat: https://on.wsj.com/2ratjSM #RishiSunak #Britain #WSJ