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A Democrat congressman has joined calls for the chair of the House Intelligence Committee to recuse himself from the Russia investigation over allegations that he is too close to the White House.
On Monday it was revealed that Republican congressman Devin Nunes was seen on the White House grounds the day before he announced that members of Mr Trump’s transition team may have “incidentally” been caught up in surveillance operations.
California representative Eric Swalwell, a member of the committee, has called on Mr Nunes to step down from chairing the investigation into whether Russian hackers had interfered with the presidential elections last year.
He said the meeting made it look like he is too close to the Trump administration to be objective.
The announcement was seen Mr Trump as a partial vindication for his accusation that Barack Obama had “wiretapped” his home in Manhattan during the campaign – a claim which Mr Nunes previously said there is no evidence to support and one which was widely ridiculed by the press and the political establishment.
After making the announcement last week Mr Nunes then raised more eyebrows by going back to the White House to brief Mr Trump – which Mr Swalwell said made it like look like a “cover-up”.
Mr Nunes said his first visit to the White House was not to see Mr Trump but attend meetings “to confirm what I already knew” and claimed no one from the Trump team knew he was there.
But Mr Swalwell has ridiculed this explanation in an interview with MSNBC: “It’s not an internet cafe. You can’t just walk in and receive classified information.
In pictures: Protests, pomp and Donald TrumpShow all 30 1 /30In pictures: Protests, pomp and Donald Trump In pictures: Protests, pomp and Donald Trump President-elect Donald Trump acknowledges guests as he arrives on the platform at the US Capitol in Washington DC
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In pictures: Protests, pomp and Donald Trump Donald Trump is sworn in as the 45th president of the United States by Chief Justice John Roberts as Melania Trump looks on during the 58th Presidential Inauguration at the U.S. Capitol in Washington
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In pictures: Protests, pomp and Donald Trump President Donald Trump shakes hands with Justice John Roberts after taking the oath at inauguration ceremonies swearing in Trump as the 45th president of the United States
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In pictures: Protests, pomp and Donald Trump President Donald Trump raises his fists after his inauguration on the West Front of the U.S. Capitol
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In pictures: Protests, pomp and Donald Trump U.S. President-elect Donald Trump greets outgoing President Barack Obama before Trump is inaugurated during ceremonies on the Capitol in Washington
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In pictures: Protests, pomp and Donald Trump resident-elect Donald Trump arrives on the platform of the US Capitol in Washington DC
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In pictures: Protests, pomp and Donald Trump Attendees partake in the inauguration ceremonies to swear in Donald Trump as the 45th president of the United States at the U.S. Capitol in Washington DC
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In pictures: Protests, pomp and Donald Trump US President Donald Trump delivers his inaugural address during ceremonies at the US Capitol in Washington DC
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In pictures: Protests, pomp and Donald Trump U.S. President Donald Trump waves with wife Melania during the Inaugural Parade in Washington DC
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In pictures: Protests, pomp and Donald Trump Protesters registered their rage against the new president Friday in a chaotic confrontation with police who used pepper spray and stun grenades in a melee just blocks from Donald Trump's inaugural parade route. Scores were arrested for trashing property and attacking officers
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In pictures: Protests, pomp and Donald Trump Demonstrators protest against US President Donald Trump in Washington DC
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In pictures: Protests, pomp and Donald Trump A woman holds a sign before the start of the Presidential Inauguration of Donald Trump at Freedom Plaza in Washington DC
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In pictures: Protests, pomp and Donald Trump Anti-Trump protesters prepare banners for a protest against the inauguration of US President-elect Donald Trump, in Berlin
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In pictures: Protests, pomp and Donald Trump Demonstrators shout slogans against US President-elect Donald Trump in Washington DC
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In pictures: Protests, pomp and Donald Trump Demonstrators march, block foot traffic and clash with U.S. Capitol Police at the entry checkpoints for the Inauguration of Donald Trump
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In pictures: Protests, pomp and Donald Trump Demonstrators display a banner as people arrive for US President-elect Donald Trump's inauguration in Washington DC
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In pictures: Protests, pomp and Donald Trump A man displays a placard as people lineup to get into the National Mall for the inauguration of US President-elect Donald Trump in Washington DC
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In pictures: Protests, pomp and Donald Trump Protesters demonstrating against U.S. President Donald Trump raise their hands as they are surrounded by police on the sidelines of the inauguration in Washington DC
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In pictures: Protests, pomp and Donald Trump A demonstrator wearing a mask depicting Donald Trump protests outside the US Embassy in London
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In pictures: Protests, pomp and Donald Trump Demonstrators hold placards as they protest outside the US Embassy in London
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In pictures: Protests, pomp and Donald Trump Former US President George W. Bush and First Lady Laura Bush arrive for the Presidential Inauguration at the US Capitol
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In pictures: Protests, pomp and Donald Trump Michelle Obama and Dr. Jill Biden share an umbrella as President Donald Trump delivers his inaugural address at the inauguration in Washington DC
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In pictures: Protests, pomp and Donald Trump Former Democratic presidential nominee Hillary Clinton and former President Bill Clinton arrive on the West Front of the U.S. Capitol in Washington
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In pictures: Protests, pomp and Donald Trump U.S. Vice President Mike Pence takes the oath of office on the West Front of the U.S. Capitol in Washington, DC
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In pictures: Protests, pomp and Donald Trump Advisors to President-elect Donald Trump, Kellyanne Conway and Steve Bannon depart from services at St. John's Church during the Presidential Inauguration in Washington
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In pictures: Protests, pomp and Donald Trump Protesters demonstrating against U.S. President Donald Trump take cover as they are hit by pepper spray by police on the sidelines of the inauguration in Washington DC
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In pictures: Protests, pomp and Donald Trump An activist demonstrating against U.S. President Donald Trump is helped after being hit by pepper spray on the sidelines of the inauguration in Washington DC
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In pictures: Protests, pomp and Donald Trump A police officer tries to tackle a protester demonstrating against U.S. President Donald Trump
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In pictures: Protests, pomp and Donald Trump Police arrest and detain a protester in the street in Washington DC
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In pictures: Protests, pomp and Donald Trump A police officer falls to the ground as another shoots pepper spray at protesters demonstrating against U.S. President Donald Trump on the sidelines of the inauguration in Washington DC
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“Everyone in the building knows that you’re there in the building.
“This is done because the White House wanted it to be done. And this is what a cover-up to a crime looks like. We are watching it play out right now.”
He said that Mr Nunes visit was unnecessary because he could have reviewed the same classified materials at the Capitol building.
Mr Swalwell revealed Mr Nunes had not told the intelligence committee the source of the surveillance claims.
“If this was done the proper way, they could have brought it over, shared it with both parties of the committee,” he added.
Other Democrat members of the committee, including Mr Swalwell’s fellow California representative Adam Schiff, have also called for Mr Nunes to recuse himself in light of the revelations.
Republican senator and former Presidential candidate John McCain has also called on Mr Nunes to reveal his sources.
Mr Nunes has insisted the revelations about the surveillance had nothing to do with the Russia investigation and he believes they were legal – but he was still “alarmed” by the discovery.
The row comes as the House continues to investigate claims that the Kremlin had sought to interfere with the US election to help Mr Trump’s campaign.
The CIA and the FBI have both stated they believe Russian hackers tried to manipulate the US election by hacking the emails of key member of the Democratic National Committee (DNC) and releasing them ahead of their conference to discredit them.
FBI Director James Comey appeared before the intelligence committee to confirm that the service was investigating whether there was “any coordination between the [Trump campaign] and the Russian effort”.
Mr Trump has repeatedly denied that he has any connection to the Kremlin.
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