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US politicians have blocked Donald Trump from making appointments without their permission as the Senate begins its summer break.
Senators unanimously agreed to hold nine short “pro-forma” sessions during the break, which runs from 11 August to 5 September.
It means the Senate will be in session every three days throughout August.
Democrats had suggested they would use the procedure to block the US President after it was suggested Mr Trump would try to replace Attorney General Jeff Sessions during recess, The Hill reported.
Mr Sessions has faced an onslaught of criticism from the former real estate mogul after recusing himself from the investigation into Russian collusion in the US elections.
Senate Minority Leader Charles Schumer said the party was ready to use “tools in our toolbox” to block a summer appointment.
"We're ready to use every single one of them, any time, day or night. It's so vital to the future of the republic," the senior Democrat said.
Mr Trump is not the first president to be blocked from making appointments by Congress.
Donald Trump's international Presidential tripsShow all 22 1 /22Donald Trump's international Presidential trips Donald Trump's international Presidential trips French President Emmanuel Macron and US President Donald Trump
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Donald Trump's international Presidential trips French President Emmanuel Macron and US President Donald Trump talk as they leave the Army Museum at Les Invalides in Paris
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Donald Trump's international Presidential trips German Chancellor Angela Merkel and US President Donald Trump arrive for the group photo at the G7 Taormina summit on the island of Sicily in May 2017
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Donald Trump's international Presidential trips Mr Trump was pressed on the subject at the G7 summit in Italy
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Donald Trump's international Presidential trips US President Donald Trump gives a speeech at the Warsaw Uprising Monument on Krasinski Square
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Donald Trump's international Presidential trips US President Donald Trump and Britain's Prime Minister Theresa May during a ceremony at the NATO headquarters before the start of a summit in Brussels, Belgium
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Donald Trump's international Presidential trips Montenegro's Prime Minister Dusko Markovic is seen to the right of Donald Trump at a Nato summit in Brussels
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Donald Trump's international Presidential trips Pope Francis meeting with US President Donald J. Trump
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Donald Trump's international Presidential trips Pope Francis poses with US President Donald Trump and First Lady Melania Trump
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Donald Trump's international Presidential trips US President Donald Trump arrives at Palazzo del Quirinale ahead of the meeting with Italian President Sergio Mattarella
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Donald Trump's international Presidential trips US President Donald Trump is seen during a joint press conference with the Palestinian leader at the presidential palace in the West Bank city of Bethlehem
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Donald Trump's international Presidential trips Palestinian president Mahmoud Abbas meets US President Donald Trump
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Donald Trump's international Presidential trips Israeli Prime Minister Benjamin Netanyahu speaks with US President Donald Trump prior to the President's departure
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Donald Trump's international Presidential trips US President Donald Trump and Israel's Prime Minister Benjamin Netanyahu shake hands after delivering a speech at the Israel Museum
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Donald Trump's international Presidential trips US President Donald Trump and First Lady Melania Trump lay a wreath in the Hall of Remembrance as White House senior advisor Jared Kushner and Ivanka Trump watch on during a visit to the Yad Vashem Holocaust Memorial museum
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Donald Trump's international Presidential trips US President Donald Trump visit to Yad Vashem Holocaust museum in Jerusalem accompanied by Prime Minister Benjamin Netanyahu
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Donald Trump's international Presidential trips US President Donald Trump takes his seat before his speech to the Arab Islamic American Summit in Riyadh in Saudi Arabia
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Donald Trump's international Presidential trips Saudi Arabia's King Salman bin Abdulaziz al-Saud, US President Donald Trump and US First Lady Melania Trump look at a display of Saudi modern art at the Saudi Royal Court in Riyadh
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Donald Trump's international Presidential trips US President Donald Trump and Saudi Arabia's King Salman bin Abdulaziz al-Saud take part in a signing ceremony at the Saudi Royal Court in Riyadh
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Donald Trump's international Presidential trips King Salman presents Donald Trump with The Collar of Abdulaziz al-Saud Medal at the Royal Court Palace on 20 May
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Donald Trump's international Presidential trips US President Donald Trump is welcomed by Saudi King Salman bin Abdulaziz al-Saud upon arrival at King Khalid International Airport in Riyadh
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Donald Trump's international Presidential trips U.S. President Donald Trump and first lady Melania Trump walk on the South Lawn prior to their first foreign trip
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Former president Barack Obama was blocked from filling a vacant Supreme Court seat last year.
Pro-forma sessions require a senator to be in Washington during the recess, to open and close session in a brief one-minute meeting.
The US Constitution says neither the Senate nor the House "can adjourn for more than three days without the consent of the other."
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