A public clash between the US president and the FBI is simmering after the agency said it had "grave concerns" over the accuracy of a classified memo on the Russian collusion probe which Donald Trump wants to be released.

Potential Russian mafia funding links with Donald Trump’s five-star Doonbeg golf resort in Co Clare have been discussed behind closed doors at a US intelligence committee hearing.

US President Donald Trump has pushed the House to renew a critical national security programme that allows spy agencies to collect intelligence on foreign targets abroad after tweets on the subject dubbed "confusing" by politicians.

Republicans in the US have launched new probes into the Obama administration and Hillary Clinton's emails

Twitter told congressional investigators it has suspended at least two dozen accounts that may have been tied to Russia, but the information shared by the social media giant at the briefing was described as "frankly inadequate".

President Donald Trump has taken another swipe at political foe Hillary Clinton with a retweet which shows him hitting a golf shot which in the next frame shows a mock-up of the ball apparently hitting his former rival for the White House.

Donald Trump's former campaign chairman has met Senate investigators, giving his recollection of a Trump Tower meeting with a Russian lawyer and agreeing to turn over contemporaneous notes of the gathering last year, sources said.

US president Donald Trump's son-in-law and adviser Jared Kushner has returned to Capitol Hill for a second day of private meetings with congressional investigators.

Congressional investigators plan to question the former chairman of the Trump campaign and will subpoena him if necessary, the Senate Judiciary Committee panel's chairman has said.

Donald Trump has sent out an encouraging message to his son, who had a harrowing day after releasing a chain of emails about his meeting with a Russian lawyer.

Republican and Democrat leaders on the House of Representatives Intelligence Committee are threatening a subpoena unless the White House clarifies whether any recordings, memoranda or other documents exist of Donald Trump's meetings with sacked FBI director James Comey.

Donald Trump's personal lawyer has rejected a request for documents as part of Congress's investigation into Russia's election meddling and contacts with the Trump campaign.

Theresa May is expected to raise UK concerns about the leaking of intelligence on the Manchester bomb attack to the US press when she meets Donald Trump on Thursday.

Donald Trump has fired FBI Director James Comey during the bureau's investigation into whether the tycoon's campaign had links to Russia's meddling in the presidential election.

Congressional investigators have rebuffed former US national security adviser Michael Flynn's offer of cooperation in exchange for immunity from prosecution.

The US House Intelligence Committee has asked the Executive Branch for any evidence that would support President Donald Trump’s claim that his phones were tapped at Trump Tower during last year’s election.

Donald Trump's top aides have said the US president-elect is not ready to accept the finding by intelligence officials that Moscow hacked Democratic emails in a bid to elevate the billionaire property mogul.

US authorities could soon be snooping on social media posts from would-be immigrants in a new effort to close security gaps in the country's visa system.

Barack Obama worked yesterday to persuade sceptical politicians to endorse a US military intervention in Syria.

America, caught by surprise by the ferocious September 11 attack against the US consulate in Libya that killed the US ambassador and three other countrymen, is bracing itself for more potential violence in parts of the Muslim world today.

Details have emerged of how the CIA fooled al Qaida over the terror network’s plot to bring down a plane with a nearly-undetectable bomb.

PRESIDENT-ELECT Barack Obama’s advisers are quietly crafting a proposal to ship dozens, if not hundreds, of imprisoned terrorism suspects to the United States to face criminal trials, a plan that would make good on his promise to close the Guantanamo Bay prison but could require creation of a controversial new system of justice.