World’s most powerful leaders Vladimir Putin, Russia Elected president 2008-12 Prime minister 2024: Current constitutional limit Xi Jinping, China 2013: Xi takes power, age 59 2018: Two-term presidential limit repealed Mao-style president for life? Donald Trump, U.S. 2017: Takes office at age 70 2018: Mid-term elections 2024: Constitutional limit of two four-year terms Kim Jong-un, North Korea 2011: Takes power at age 29 on death of Kim Jong-il Supreme leader for life? Mohammed bin Salman, Saudi Arabia 2017: Named Crown Prince at age 31, becomes de facto ruler Could rule for life? Recep Tayyip Erdogan, Turkey 2003-14: Prime minister 2014: Elected president 2029: Could rule for further decade if he wins 2019 election Abdel Fatah al-Sisi, Egypt 2013: Led military coup 2014: Elected president 2022: 2022: Wins second four-year term in March 2018 election 2000 05 10 15 20 25 30 35 40 45 Potential time in office Sources: Bloomberg, Freedom House Pictures: Associated Press © GRAPHIC NEWS