campaign

Yes voter Duncan Thomson waits for the doors to open at St Martins Church hall polling station, as the people of Scotland take to the poles to decide whether Scotland should become an independent country, on September 18, 2014 in Renton, Scotland. After many months of campaigning, final opinion poles show the referendum result is still  too close to call.

Mark Runnacles/Getty Images

Yes voter Duncan Thomson waits for the doors to open at St Martins Church hall polling station in Renton, West Dunbartonshire, as the people of Scotland take to the polls to decide whether the country should become an independent nation

No campaigner Judy Shaw Stewart from Doune as she sits out at the A84 to protect vandalised NO Thanks signs  ahead of the Scottish Referendum on September 18th.  PRESS ASSOCIATION Photo. Picture date: Monday September 15, 2014.

Andrew Milligan/PA

No campaigner Judy Shaw Stewart from Doune as she sits out at the A84 to protect vandalised NO Thanks signs on Monday ahead of the Scottish Referendum on September 18th

A wall in Princes Street Gardens in Edinburgh, Scotland, as the Scottish independence referendum campaign continues.  Picture date: Tuesday September 2, 2014.

Danny Lawson/PA

A wall defaced with a pro independence slogan in Princes Street Gardens in Edinburgh, Scotland, as the Scottish independence referendum campaign continues

A boy wearing a mask of Hindu nationalist Narendra Modi, prime ministerial candidate for India's main opposition Bharatiya Janata Party (BJP), sits as he waits for the start of an election campaign rally being addressed by Modi in Kheralu town in the western Indian state of Gujarat April 28, 2014. Around 815 million people have registered to vote in the world's biggest election - a number exceeding the population of Europe and a world record - and results of the mammoth exercise, which concludes on May 12, are due on May 16. REUTERS/Amit Dave

Amit Dave/Reuters

A boy wearing a mask of Hindu nationalist Narendra Modi, prime ministerial candidate for India‘s main opposition Bharatiya Janata party, waits for the start of an election campaign rally being addressed by Mr Modi in Kheralu town in the western Indian state of Gujarat Read more

Ukip poster campaign...Ukip leader Nigel Farage stands with Paul Sykes (left) and an unnamed man at the launch of his party's European election bilboard campaign in Barkers Pool, Sheffield. PRESS ASSOCIATION Photo. Picture date: Tuesday April 22, 2014. The anti-European Union (EU) party is using £1.5 million of funding from millionaire ex-Tory donor Paul Sykes to launch its biggest-ever publicity drive ahead of the May 22 poll which many observers believe it could win. See PA story POLITICS Ukip. Photo credit should read: Peter Byrne/PA Wire

Peter Byrne/PA

Ukip leader Nigel Farage (centre) stands with Paul Sykes (left) and an unnamed man at the launch of his party’s European election billboard campaign in Barkers Pool, Sheffield. The anti-European Union party is using £1.5 million of funding from Mr Sykes, a millionaire ex-Tory donor, to launch its biggest-ever publicity drive ahead of the EU elections on May 22. Read more

Supporters of Afghan presidential candid...Supporters of Afghan presidential candidate Ashraf Ghani Ahmadzai listen to his campaign address during a political rally in the northern Afghan city of Mazar-i-Sharif on March 31, 2014. Afghans will go to the polls on April 5 to choose a new President.

Farshad Usyan/AFP

Supporters of Afghan presidential candidate Ashraf Ghani Ahmadzai listen to his campaign address during a political rally in the northern Afghan city of Mazar-i-Sharif on Monday. Afghans will go to the polls on April 5 to choose a new President. Read more

A supporter of Afghan presidential candidate Zalmai Rassoul carries chairs as he prepares for an election rally in Panshir, northern Afghanistan, March 28, 2014. Afghan presidential elections will be held on April 5.

Zohra Bensemra/Reuters

A supporter of Afghan presidential candidate Zalmai Rassoul carries chairs as he prepares for an election rally in Panshir, northern Afghanistan. Afghan presidential elections will be held on April 5.

Pakistani health workers mark the thumb of a child after giving him polio vaccine drops to a child during a polio vaccination campaign in Rawalpindi, Pakistan, on February 25, 2014. Pakistani health workers go door-to-door to administer vaccinations to children for various diseases including polio, tuberculosis, tetanus, whooping cough, measles and hepatitis.Dr. Elias Durry, coordinating the World Health Organizations support to Pakistans polio eradication effort, said recorded 70 cases of polio last year and vaccinated 34 million children.

Metin Aktas/Anadolu Agency/Getty Images

Pakistani health workers mark the thumb of a child after giving him vaccine during a polio vaccination campaign in Rawalpindi, Pakistan. Pakistani health workers go door to door to administer vaccinations to children for diseases including polio, tuberculosis, tetanus, whooping cough, measles and hepatitis.

Supporters of the Christian Democratic Union (CDU) hold placards with the nickname of German Chancellor and CDU leader Angela Merkel at an election campaign event of the CDU  in Fulda, Germany, on Thursday, Sept. 19, 2013. Merkel, the leader of the conservative Christian Democratic Union party and top candidate of her party will be challenged by Social Democratic Party (SPD) top candidate Peer Steinbrueck at Germany's general elections on Sept. 22, 2013

Jens Meyer/AP

Supporters of Angela Merkel show their support for the German chancellor at an election campaign event for the Christian Democratic Union in Fulda, Germany, on Thursday Read more

ered voters. (AP Photo/Rebecca Blackwell)A girl walks past campaign posters on the windows of a mud brick house in Gao, Mali Thursday, July 25, 2013. Mali's presidential election is going ahead on Sunday despite massive logistical and technical lapses, including a voter roll which inexplicably does not contain the names of tens of thousands of regist

Rebecca Blackwell/AP

A girl walks past campaign posters on the windows of a mud brick house in Gao, Mali, on Thursday. Mali’s presidential election is going ahead on Sunday despite logistical and technical lapses, including a voter roll that does not contain the names of tens of thousands of registered voters. Read more