With polls suggesting a hung Parliament is likely, BBC political editor Nick Robinson looks at the arguments around what makes a government legitimate.
Liam Adams, brother of Sinn Fein president Gerry Adams, loses an appeal against his conviction and sentence for raping and abusing his daughter
The BBC's Ross Hawkins went to St Pauls primary school in Didsbury to explain what could happen if there is another hung parliament.
Renters face the greatest risk from identity thieves owing to their domestic set-up and lifestyle, research suggests.
Eurozone economic growth will be slightly stronger this year than previously forecast, according to the European Commission's latest quarterly forecast.
John Kerry becomes the first US secretary of state to visit the Somali capital Mogadishu, which is recovering from years of conflict
Brazil registers nearly 746,000 cases of the mosquito-borne disease dengue fever with nine states experiencing an epidemic, officials say.
An American trekker in a Nepalese village records the moment people flee from a building as the 7.8-magnitude earthquake hits.
Director Roman Polanski is given one of Poland's top film awards in Krakow, where he also faces a US request to extradite him over rape charges dating back to 1977.
Lib Dem leader Nick Clegg says he is not in principle opposed to an EU referendum, as other priorities like the NHS would be more important in any post-election deal.
A man is shot dead in the Markets area near Belfast city centre.
A man who admitted killing an 11-year-old girl in a hit-and-run in Glasgow is jailed for 12 years and three months.
HSBC says it will make its decision whether to move its headquarters out of the UK within months rather than years.
A global alert is issued by Interpol over the "serious and imminent threat" of online diet pills which claimed the life of a Shropshire woman.
Labour leader Ed Miliband is speaking at an event in Bedfordshire.
Pamela Cookey says it will be an honour to receive her 100th England cap during the Test series against Trinidad and Tobago.
Security cameras at a hospital in Australia capture footage of a koala entering its emergency department.
The first job of a new Chancellor of the Exchequer may be to witness Greece saying its goodbyes to the euro.
Islamic State group says it was behind attack on Dallas Prophet Muhammad cartoon event in which two gunmen died.
Scientists discover one of the secrets of how the world’s biggest whales engulf their own weight in water and food: the nerves in their big jaws are incredibly stretchy.