There was also no immediate confirmation from the Senate committee.
WikiLeaks claimed on Twitter that the letter was delivered via the U.S. embassy in London, although both the embassy and the senate select committee on intelligence declined to comment when contacted by Sky News. "As part of that inquiry, the Committee requests that you make yourself available for a closed interview with bipartisan Committee staff at a mutually agreeable time and location".
Anderson expressed concern after the Ecuadorean embassy in London had revoked Assange's visitor privileges and Internet access, saying she was anxious about his health and well-being, The New York Post's Page Six reported.
José Mourinho does not expect any Manchester United deadline-day signings
Former Premier League striker Alan Shearer has made his prediction for the 2018/19 season and told BBC Sport he expects Manchester City to retain the title . "I'm very happy with the team I have".
The organization said its legal team is "considering" the request, but wants it to "conform to a high ethical standard".
However, he would be arrested by British police for breaching bail conditions should he leave the building, and he has always said he fears being extradited to the United States for having published a huge cache of US diplomatic and military secrets on the WikiLeaks website.
Since his de-facto house arrest in the embassy, WikiLeaks has continued to draw controversy, publishing then-candidate Hillary Clinton's emails and leaked emails from the Democratic Party's internal servers in 2016.
As for the question of whether he would be granted full asylum in Ecuador, Valencia said that this is a complex issue that requires unlimited time, because his decisions necessary to reach an agreement between the government of Britain, Ecuador and lawyers of the person involved.
But according to Daily Beast reporting and special prosecutor Robert Mueller, Guccifer2.0 was a fictitious entity created by the GRU, Russian military intelligence.