He added that "we know there was not a physical wiretap of Trump Tower" - but held that it's "possible" there were other forms of surveillance.
James Comey revealed for the first time that the FBI is investigating possible Russian government efforts to meddle with the election, including any links between Mr Trump's campaign and Moscow.
"But in unusual circumstances, where it is in the public interest, it may be appropriate to do so", Comey said. A recently declassified report from the Office of the Director of National Intelligence revealed that every US intelligence agency concurred that Putin ordered a concerted effort to "undermine" democracy in America and boost Trump's chances of victory. The House Intelligence Committee is investigating how the cyberattacks happened and how to protect the nation's democratic processes from interference in the future.
Monday's hearing before the House Intelligence Committee is one of several congressional panels probing allegations of Russian meddling.
Devin Nunes, chairman of the house intelligence committee, also said there was no evidence to support the idea that Mr Obama ordered a tap.
FBI Director Confirms Trump Probe
Sessions later admitted meeting with Kislyak at least twice, and has recused himself from the investigation. Trump will not soon escape from under the cloud of suspicion hovering over him and his campaign team.
"A separate tweet referenced James Clapper, the director of national intelligence under President Barack Obama, who has said that Trump's allegation that Obama wiretapped Trump Tower is false".
FBI Director James Comey and National Security Agency Director Mike Rogers will testify on-the-record under oath starting at 9 a.m.
Investigation into leaks, Russia, the Trump campaign and how they all fit together.
The tweet referred to Rep. Trey Gowdy's grilling of Comey at the House Intelligence Committee about who could have leaked classified documents about phone calls former national security adviser Michael Flynn made to the Russian ambassador.
The Obama administration in late December retaliated against Russia, imposing sanctions over the cyberattacks even as Russian officials continue to deny any involvement in the hacks. "We have been closely monitoring Russia's aggressions for years", Nunes said.
Britain to launch European Union exit process on Mar 29
She has also stressed Britain's commitment to defending European security through North Atlantic Treaty Organisation . Pro-EU Liberal Democrat leader Tim Farron warned that May was embarking on an "extreme and divisive" Brexit plan.
Yes, it is indeed true that it would be unfair to shout "Lock him up!" based on an incomplete FBI investigation - just ask Hillary Clinton if you'd like to know exactly how unfair.
A few days after saying Clinton's emails were being investigated, the FBI cleared her of doing anything unethical. Asked about certain members of the Obama administration, Comey said they would be able to unmask citizens in certain situations.
"We said the United States intelligence community does not do analysis or reporting on the USA political process", NSA director Michael Rogers confirmed.
"We assess Russian President Vladimir Putin ordered an influence campaign in 2016 aimed at the USA presidential election", the report stated. What does matter is this: "The Russians successfully meddled in our democracy, and our intelligence agencies have concluded that they will do so again".
16 killed in Ghana waterfall accident
It happened during a storm on Sunday at the waterfall in Kintampo, a popular bathing spot in Ghana's central Brong-Ahafo region. According to reports, the tree fell onto persons, a lot of them believed to be students, who were swimming under the fall.
- Urban Outfitters Inc. (URBN) Closed the Last Trading Session at $23.61
- Comey says FBI investigating Russian Federation interference
- How many times has President Donald Trump played golf while in office?
- UK PM Theresa May to trigger Brexit on March 29
- The Gorsuch Hearing: Nuts and Bolts
- Chuck Berry Music Sales Explode After His Death
- Politics Ondo Assembly Crisis: Speaker Akindele, Others Resign
- Data breach at Saks Fifth Avenue exposes customers' personal information
- Leaping ban, full-time refs, shortened overtimes among National Football League competition committee proposal
- USA stocks post weekly gains amid Fed's interest rate hike, positive data