PHOTO GALLERY: Russian President Vladimir Putin through the years
PHOTO GALLERY: Russian President Vladimir Putin through the years

Putin holds a fish he caught during a mini-break in the Siberian Tyva region in this photo released by the Kremlin press service on Aug. 5, 2017. (Alexei Nikolsky, Sputnik, Kremlin Pool Photo via AP, File)

Putin speaks at a youth forum in Moscow just days ahead of the election. (AP Photo/Alexander Zemlianichenko, pool)

Journalists watch as Putin gives his annual state of the nation address in March 2018.(AP Photo/Alexander Zemlianichenko, File)

Russian President Vladimir Putin attends the annual Volunteer of Russia 2017 award ceremony at the Megasport Sport Palace in Moscow on Dec. 6, 2017.(Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP)

Putin, then Russian President Boris Yeltsin’s deputy chief of staff, center, poses with his friends at a party in St.Petersburg in February, 1997. (AP Photo/Dmitri Lovetsky, File)

Putin, wearing a blue helmet and an oxygen mask, sits in a Su-27 fighter jet after his flight into the war zone in Grozny, Chechnya, on March 20, 2000. (Sputnik, Kremlin Pool Photo via AP, file)

Putin, then acting president and a candidate, talks with representatives of the news media at a polling station in Moscow on March 26, 2000. (AP Photo/ Alexander Zemlianichenko, File)

Putin looks through the periscope of a nuclear submarine during a visit to the Northern Fleet on the Barents Sea, Russia, on April 6, 2000. (AP Photo, File)

Putin smiles during a visit to Ashgabat, Turkmenistan on May 19, 2000. (AP Photo/Alexander Zemlianichenko, File)

Putin, left, and former President Boris Yeltsin watch Kremlin guards marching in Moscow on May 7, 2000. (AP Photo/Alexander Zenlianichenko, File)

Putin thanks the crew of the Arkhangelsk nuclear submarine in the Barents Sea, Russia, Feb. 17, 2004. (Sputnik, Kremlin Pool Photo via AP, File)

Putin holds ballots at a polling station in Moscow on March 14, 2004. (AP Photo/Alexander Zemlianichenko, File)

Putin walks through St.George’s Hall to take part in an inauguration ceremony at the Kremlin May 7, 2004. (AP Photo/Alexander Zemlianichenko, Pool, File )

Putin sits in the cockpit of a supersonic strategic bomber ready to leave for a training mission in Moscow on Aug. 16, 2005. (Sputnik, Kremlin Pool Photo via AP, File)

Putin, wearing a sailor’s uniform, observes naval maneuvers aboard the nuclear-powered Peter the Great missile cruiser in the Barents Sea near the northern city of Murmansk on Aug. 17, 2005. (Alexei Panov, Sputnik, Kremlin Pool Photo via AP, File)

Putin locks a collar with a satellite tracker on a tranquilized five-year-old Ussuri tiger in a Russian Academy of Sciences reserve in Russia’s Far East as he takes part in a preservation program on Aug. 31, 2008. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, File)

Putin, then prime minister, is seen riding a horse while traveling in the mountains of the Siberian Tyva region (also referred to as Tuva), during a vacation on Aug. 3, 2009. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, file)

Putin swims during his vacation on Aug. 3, 2009. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, File)

Putin, left, climbs aboard a mini-submarine before his descent in Lake Baikal, the world’s largest fresh water lake, about 4200 kilometers (2,600 miles) east of Moscow, on Aug. 1, 2009. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, File)

Putin sits in the cockpit of an Emergencies Ministry jet flying to drop water over forest fires in the Ryazan region on Aug. 10, 2010. (Alexei Nikolsky, Sputnik, Kremlin Pool Photo via AP, File)

Putin carries a hunting rifle during his trip in Ubsunur Hollow in the Siberian Tyva region (also referred to as Tuva) in this photo released Oct. 30, 2010. (Dmitry Astakhov, Sputnik, Kremlin Pool Photo via AP, File)

Putin carries two pieces of archaeological trophies he found while diving near an ancient Greek port on the Taman Peninsula, about 1150 kilometers (720 miles) south of Moscow on Aug. 10, 2011. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, File)

Putin, after claiming victory in Russia’s presidential election, tears up as he reacts at a massive rally of his supporters at Manezh square outside the Kremlin on March 4, 2012. (AP Photo/Ivan Sekretarev, File)

Putin flies in a motorized hang glider on the Yamal Peninsula on Sept. 5, 2012. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, File)

Putin attends a parade marking Victory Day in Sevastopol, Crimea, on May 9, 2014. (AP Photo / Ivan Sekretarev, File)

Putin attends a wreath-laying ceremony on Feb. 23, 2017, at the Tomb of the Unknown Soldier in Moscow. (AP Photo/Ivan Sekretarev, File)

Putin holds a fish he caught during a mini-break in the Siberian Tyva region in this photo released by the Kremlin press service on Aug. 5, 2017. (Alexei Nikolsky, Sputnik, Kremlin Pool Photo via AP, File)

Putin speaks at a youth forum in Moscow just days ahead of the election. (AP Photo/Alexander Zemlianichenko, pool)

Journalists watch as Putin gives his annual state of the nation address in March 2018.(AP Photo/Alexander Zemlianichenko, File)

Russian President Vladimir Putin attends the annual Volunteer of Russia 2017 award ceremony at the Megasport Sport Palace in Moscow on Dec. 6, 2017.(Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP)

Putin, then Russian President Boris Yeltsin’s deputy chief of staff, center, poses with his friends at a party in St.Petersburg in February, 1997. (AP Photo/Dmitri Lovetsky, File)

Putin, wearing a blue helmet and an oxygen mask, sits in a Su-27 fighter jet after his flight into the war zone in Grozny, Chechnya, on March 20, 2000. (Sputnik, Kremlin Pool Photo via AP, file)

Putin, then acting president and a candidate, talks with representatives of the news media at a polling station in Moscow on March 26, 2000. (AP Photo/ Alexander Zemlianichenko, File)

Putin looks through the periscope of a nuclear submarine during a visit to the Northern Fleet on the Barents Sea, Russia, on April 6, 2000. (AP Photo, File)

Putin smiles during a visit to Ashgabat, Turkmenistan on May 19, 2000. (AP Photo/Alexander Zemlianichenko, File)

Putin, left, and former President Boris Yeltsin watch Kremlin guards marching in Moscow on May 7, 2000. (AP Photo/Alexander Zenlianichenko, File)

Putin thanks the crew of the Arkhangelsk nuclear submarine in the Barents Sea, Russia, Feb. 17, 2004. (Sputnik, Kremlin Pool Photo via AP, File)

Putin holds ballots at a polling station in Moscow on March 14, 2004. (AP Photo/Alexander Zemlianichenko, File)

Putin walks through St.George’s Hall to take part in an inauguration ceremony at the Kremlin May 7, 2004. (AP Photo/Alexander Zemlianichenko, Pool, File )

Putin sits in the cockpit of a supersonic strategic bomber ready to leave for a training mission in Moscow on Aug. 16, 2005. (Sputnik, Kremlin Pool Photo via AP, File)

Putin, wearing a sailor’s uniform, observes naval maneuvers aboard the nuclear-powered Peter the Great missile cruiser in the Barents Sea near the northern city of Murmansk on Aug. 17, 2005. (Alexei Panov, Sputnik, Kremlin Pool Photo via AP, File)
Putin, wearing a sailor’s uniform, observes naval maneuvers aboard the nuclear-powered Peter the Great missile cruiser in the Barents Sea near the northern city of Murmansk on Aug. 17, 2005. (Alexei Panov, Sputnik, Kremlin Pool Photo via AP, File)

Putin locks a collar with a satellite tracker on a tranquilized five-year-old Ussuri tiger in a Russian Academy of Sciences reserve in Russia’s Far East as he takes part in a preservation program on Aug. 31, 2008. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, File)
Putin locks a collar with a satellite tracker on a tranquilized five-year-old Ussuri tiger in a Russian Academy of Sciences reserve in Russia’s Far East as he takes part in a preservation program on Aug. 31, 2008. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, File)

Putin, then prime minister, is seen riding a horse while traveling in the mountains of the Siberian Tyva region (also referred to as Tuva), during a vacation on Aug. 3, 2009. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, file)
Putin, then prime minister, is seen riding a horse while traveling in the mountains of the Siberian Tyva region (also referred to as Tuva), during a vacation on Aug. 3, 2009. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, file)

Putin swims during his vacation on Aug. 3, 2009. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, File)

Putin, left, climbs aboard a mini-submarine before his descent in Lake Baikal, the world’s largest fresh water lake, about 4200 kilometers (2,600 miles) east of Moscow, on Aug. 1, 2009. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, File)
Putin, left, climbs aboard a mini-submarine before his descent in Lake Baikal, the world’s largest fresh water lake, about 4200 kilometers (2,600 miles) east of Moscow, on Aug. 1, 2009. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, File)

Putin sits in the cockpit of an Emergencies Ministry jet flying to drop water over forest fires in the Ryazan region on Aug. 10, 2010. (Alexei Nikolsky, Sputnik, Kremlin Pool Photo via AP, File)

Putin carries a hunting rifle during his trip in Ubsunur Hollow in the Siberian Tyva region (also referred to as Tuva) in this photo released Oct. 30, 2010. (Dmitry Astakhov, Sputnik, Kremlin Pool Photo via AP, File)
Putin carries a hunting rifle during his trip in Ubsunur Hollow in the Siberian Tyva region (also referred to as Tuva) in this photo released Oct. 30, 2010. (Dmitry Astakhov, Sputnik, Kremlin Pool Photo via AP, File)

Putin carries two pieces of archaeological trophies he found while diving near an ancient Greek port on the Taman Peninsula, about 1150 kilometers (720 miles) south of Moscow on Aug. 10, 2011. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, File)
Putin carries two pieces of archaeological trophies he found while diving near an ancient Greek port on the Taman Peninsula, about 1150 kilometers (720 miles) south of Moscow on Aug. 10, 2011. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, File)

Putin, after claiming victory in Russia’s presidential election, tears up as he reacts at a massive rally of his supporters at Manezh square outside the Kremlin on March 4, 2012. (AP Photo/Ivan Sekretarev, File)
Putin, after claiming victory in Russia’s presidential election, tears up as he reacts at a massive rally of his supporters at Manezh square outside the Kremlin on March 4, 2012. (AP Photo/Ivan Sekretarev, File)

Putin flies in a motorized hang glider on the Yamal Peninsula on Sept. 5, 2012. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, File)

Putin attends a parade marking Victory Day in Sevastopol, Crimea, on May 9, 2014. (AP Photo / Ivan Sekretarev, File)

Putin attends a wreath-laying ceremony on Feb. 23, 2017, at the Tomb of the Unknown Soldier in Moscow. (AP Photo/Ivan Sekretarev, File)
Russian President Vladimir Putin is expected to easily win a fourth term Sunday, which would make him the nation’s longest-serving ruler since Soviet dictator Josef Stalin.
