The British Conservative Party publishes a draft European Union (Referendum) Bill aimed at holding a referendum on Britain's membership of the European Union by 2017.
UK Prime Minister Boris Johnson holds discussions about a possible snap election in the face of opposition to leaving the European Union without a deal. Those against Johnson's plan to leave in late October with or without a deal within his own Conservative Party are warned they may be expelled from the party.
European Union leaders advise the United Kingdom that, after their EU exit, to retain access to the bloc's lucrative single market, the UK must allow free movement for EU workers. German Chancellor Angela Merkel and French President François Hollande reiterated that freedom of movement of EU citizens is non-negotiable.
U.S. President Barack Obama, in an op-ed in London's "Daily Telegraph", urges Britons to keep the U.K. in the European Union. Tomorrow, Obama is scheduled to have lunch with Prince Philip and Queen Elizabeth, who celebrated her 90th birthday today. He then will hold talks with Prime Minister David Cameron.
The United Kingdom's Prime Minister David Cameron announces he will suspend collective responsibility ahead of the referendum on the country's EU membership, allowing ministers to campaign for the UK to leave the European Union. A member of his cabinet was reportedly due to resign over the issue within 24 hours.
Former Chancellor of Germany Helmut Kohl blames recently deceased former British Prime Minister Margaret Thatcher's hostility towards a closer Europe as the cause for ongoing tensions between the United Kingdom and the European Union.