Russians

Russians will head to polling stations throughout the country on Wednesday to cast their ballots in a referendum to determine whether President Vladimir Putin can remain in power for the next 16 years.

It was the final day of voting, which began at the weekend, and is a public holiday

Putin, 67, has been in power for two decades as president or prime minister and is currently the longest-serving Russian or Soviet leader since Joseph Stalin.

The referendum seeks changes to the constitution that could enable Putin to run for re-election twice more and potentially remain in power until he …