An election official shows a spoilt ballot, with the words ‘All corrupt’, as votes are counted at a polling station after midterm elections in Ciudad Juarez, Mexico. Reuters Archive.Photo by STRINGER Mexico

Electoral staff burn unused ballots after polling stations close in Panama City. Reuters Archive.

Photo by Carlos Jasso

A worker carries ballot boxes at the National Stadium which will be used as a voting station for the upcoming presidential elections in Santiago, Chile. Reuters Archive.Photo by Ivan Alvarado

A man casts his ballot at a polling station for the presidential election in Santiago, Chile. Reuters Archive.Photo by Ivan Alvarado

Pope Tawadros II, pope of the Coptic Orthodox church, shows off his ink-stained finger as he casts his vote in a referendum on the new Egyptian constitution at a polling station in Cairo, Egypt. Reuters Archive.Photo by Mohamed Abd El Ghany

A traffic policewoman shows her ink-stained fingers after casting her ballot at a polling station, during early voting for the parliamentary election in the northern Iraqi province of Dohuk, Iraq. Reuters Archive.Photo by STRINGER Iraq

Electoral committee members Stefania Srebalova (L) and Kristina Vincova leave with a mobile ballot box after voters from an alpine chalet cast their votes, below the Solisko peak in the High Tatras, northeast of Bratislava, Slovakia. Reuters Archive.Photo by Radovan Stoklasa

Workers check ballots comprising of 21 presidential candidates at a plant in Kiev, Ukraine. Reuters Archive.Photo Gleb Garanich

A bride prepares to mark her ballot at a polling station during the European Parliament elections in Trencin, Slovakia. Reuters Archive.

Photo by Radovan Stoklasa

Women wearing traditional ‘Rociera’ outfit hold their ballots before voting at a polling station during regional and municipal elections in El Rocio village, southern Spain. Reuters Archive.Photo by Marcelo del Pozo

A man leaves a voting booth before casting his ballot at polling station in the village of Kosmach in the Ivano-Frankivsk region of western Ukraine. Reuters Archive.Photo by Kacper Pempel

A parliamentary assistant checks a ballot box at the Chambers of Deputies in Rome, Italy. Reuters Archive.Photo by Alessandro Bianchi

A dog is pictured as people cast their ballots at a polling station in Naples, Italy. Reuters Archive.

Photo by Ciro Luca

A member of Catalan pro-independence supporter group «Muts i a la Gabia» (Silenced and Caged) holds a ballot box fitted in a cage during a protest against the Spanish Constitutional Court in front of the Basilica Sagrada Familia in Barcelona, Spain. Reuters Archive.Photo by Gustau Nacarino

Fisherman Brad Hull holds a freshly-caught salmon after docking his fishing vessel to attend a protest at Pier 45 in San Francisco, California, USA. Reuters Archive.Photo Robert Galbraith