Putin has been the President of Russia for multiple terms and is set to break records for the longest-serving leader.
Russian elections are held across 11 time zones, with 100 million votes collected at 100,000 polling places.
Putin's opponents, like Communist Gennady Zyuganov and far-right nationalist Vladimir Zhirinovsky, are unable to gather enough support to challenge him.
The Kremlin uses state-run media outlets to attack opponents and ensure favorable coverage for Putin's campaign.
High voter turnout is orchestrated to legitimize Putin's victories and maintain his grip on power.