Florence holds elections for mayor every four years, alongside national Presidential elections.

To allow voters to vote on constitutional amendments at any time, rather than only alongside general elections.

A constitutional referendum was held in Liberia on 4 May 1943, alongside general elections.

A constitutional referendum was held in Iran on 28 July 1989, alongside presidential elections.

A constitutional referendum was held in Liberia on 7 May 1935, alongside general elections.

While this referendum was held alongside elections, turnout was only 60% that of the general election.

Venezuela's constitutional referendum on Sunday, alongside other recent elections, gives a clear, not simple, picture of what the people want.

In 2009 it was decided to hold the referendum alongside local elections in 2010.

A double referendum was held in Georgia on 5 January 2008 alongside presidential elections.

A constitutional referendum was held in Liberia on 1 May 1849, alongside general elections.