Vladimir Putin has already been in power for 24 years in one way or another and has just secured another six-years.
As he heads into his fifth term, he's already served 20 years as president and four as prime minister, when it was widely considered that he was in charge anyway.
At 71 years of age, he's already led Russia longer than any ruler since Soviet dictator Joseph Stalin, who spent almost 31 years in power.
Russia's constitution was amended in 2020, increasing the presidential term from four to six years and giving Putin a clean slate to run again by cancelling out his previous terms.
Theoretically, he could seek a sixth term and continue until 2036, which would keep him longer in power than Catherine the Great in the 18th Century.
Source: BBC
