The FBI obtained a warrant to secretly surveil former Donald TrumpDonald TrumpReport: FBI granted FISA warrant to surveil ex-Trump aide Carter Page Dem senator seeks probe of Trump aide's tweet Pelosi calls for Spicer's firing after Hitler remarks MORE aide Carter Page last summer under the Foreign Intelligence Surveillance Act (FISA), according to a Tuesday Washington Post report.
The Post, citing unnamed law enforcement and other US officials, said Tuesday the government surveillance application laid out the basis for believing that Page had knowingly engaged in intelligence activities on Russia's behalf.
Page has denied any wrongdoing, and he volunteered to testify before the House Intelligence Committee.
Page issued a statement to Reuters on Tuesday, saying that he was "happy to hear" about the Post's report.
In recent months White House officials have tried to downplay Page's role with the campaign.
Page declined to answer Tapper's questions about who originally recruited him into the Trump campaign, though he did reveal that it was not Paul Manafort, Trump's former campaign manager who is now expected to register with the Justice Department as a foreign agent due to his work for a pro-Russian Ukrainian political party.
"I have nothing to hide", said Page, who in February described himself as a "junior member" of the Trump campaign.
The application for surveillance explained why investigators believed Page was an agent of Russian Federation, officials told the newspaper.
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Among the details the Federal Bureau of Investigation provided the court were contacts between Page and a Russian intelligence operative in New York City in 2013, the sources told the Post.
When asked by Stephanopoulos if Page had discussed lifting sanctions with Russian officials prior to Trump taking office, Page was initially resolute in his denial, but quickly wavered.
Page - an energy consultant who worked with Russia's state-owned energy giant Gazprom and later founded his own firm, Global Energy Capital, in 2011 - told Business Insider on Thursday that "there were never ever any negotiations or promises whatsoever by me" to Russian officials, "as per my conversation with Jake and in contrast to the false allegations in the Dodgy Dossier".
'I like that he takes on everything, ' Podobnyy said, according to the transcript.
Sessions, while working with the Trump campaign, had met with the Russian ambassador, Sergey I. Kislyak.
Former Donald Trump foreign policy adviser Carter Page Thursday denied suggesting during a trip to Russian Federation last summer that the president would be open to easing sanctions, but then admitted that he did not "recall every single word" that he had said during his visit.
Page attracted controversy during the campaign for making pro-Putin speeches, while touting the idea that a Trump election would be good for U.S. -Russia relations. The FBI is trying to identify if the campaign collaborated with the Russian Authorities to swing the election in the favor of Trump. Reports last month suggested that Page met with Russia's ambassador to the USA on the sidelines of the 2016 Republican National Convention in Cleveland.