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Donald Trump's ban has sparked protests in Los Angeles and London
What is Donald Trump’s immigration ban?
Donald Trump has signed an executive order banning travellers from seven predominantly Muslim countries in the Middle East and Africa for 90 days.
The new US President has also banned Syrian refugees indefinitely and has suspended the entire US refugee programme for 120 days.
Mr Trump has argued that the development of an ”extreme vetting" system will help "keep radical Islamic terrorists out of the US".
In response to global outrage, he said: “This is not about religion — this is about terror and keeping our country safe.”
Critics warn that the ban could act as a recruiting sergeant for terrorists as well as denying refuge to those fleeing violence.
Who does the Muslim ban affect?
Mr Trump’s 90-day immigration ban covers travellers from Iran, Iraq, Libya, Somalia, Sudan, Syria and Yemen.
The US Embassy has said nationals and dual nationals of these countries cannot enter the US and will not be issued visas for 90 days.
But it adds: “Dual nationals of the United Kingdom and one of these countries are exempt from the executive order when travelling on a valid United Kingdom passport and US visa.”
The Foreign and Commonwealth Office said: “The only dual nationals who might have extra checks are those coming from one of the seven countries themselves – for example a UK-Libya dual national coming from Libya to the US.”
How has the UK responded to the ban?
The ban has sparked protests in the major cities yesterday evening and more than 1.6 million Britons have signed a petition calling for his state visit to be cancelled.
But the Government has refused to withdraw the invitation of a state visit after Theresa May visited Mr Trump last week.
Mrs May came under fire for refusing to condemn the ban as details of it were emerging during a press conference in Turkey on Saturday.
Downing Street later released a statement saying British Government “does not agree” with Mr Trump’s approach to immigration.
The UK Reacts To Trump's 'Muslim' Travel Ban
Mon, January 30, 2017
President Trump signed an executive order banning immigration to the USA from seven 'muslim' countries. This led to protests across America and, now, the UK.
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People demonstrate during a protest at Downing Street in central London against US President Donald Trump's controversial travel ban on refugees and people from seven mainly-Muslim countries
What happens next?
Opponents of the ‘extreme vetting’ order are planning to launch legal challenges against the ban.
Democrats on Capitol Hill are planning to fight the ban by supporting public protests, delaying Cabinet confirmations and trying to reject Mr Trump’s Supreme Court pick.
Barack Obama's spokesman said he supports protests and “fundamentally disagrees with the notion of discriminating against individuals because of their faith or religion.”
Mr Trump has sacked acting Attorney General Sally Yates after she ordered Justice Department lawyers to stop defending his immigration orders.