Russian President Vladimir Putin has offered to provide a record of US President Donald Trump's meeting with Russian Foreign Minister Sergei Lavrov, in which it is alleged the President revealed classified information.

Key points: Mr Putin says Russia is ready to hand a transcript of Mr Trump's meeting to officials

Mr Putin says Russia is ready to hand a transcript of Mr Trump's meeting to officials US officials said on Monday Mr Trump had disclosed classified information to Russia

US officials said on Monday Mr Trump had disclosed classified information to Russia Israeli officials declined to say whether they are the source of information Mr Trump shared

At a press conference alongside Italian Prime Minister Paolo Gentiloni, Mr Putin referred to "political schizophrenia" in the US and laughed off allegations that Mr Trump revealed classified information to Mr Lavrov.

But he said Russia was able to provide a "record" of the conversation.

A Kremlin aide, Yuri Ushakov, later said Moscow had in its possession a written record of the conversation, not an audio recording.

Mr Putin said Mr Trump was not being allowed to do his job properly.

"It's hard to imagine what else can these people who generate such nonsense and rubbish dream up next," Mr Putin said.

"What surprises me is that they are shaking up the domestic political situation using anti-Russian slogans.

"Either they don't understand the damage they're doing to their own country, in which case they are simply stupid, or they understand everything, in which case they are dangerous and corrupt."

Comey asked to testify about Trump conversations

In Washington, former FBI director James Comey has been asked to testify in front of three committees next week about reports he was pressured by Mr Trump to shut down an investigation into former national security adviser Michael Flynn's ties to Russia.

The news came as the Justice Department appointed former FBI director Robert Mueller to oversee the investigation into Russia's influence in the election last year.

Republican Jason Chaffetz, the chairman of a House oversight committee, said in a tweet yesterday that he had still not spoken with Mr Comey about testifying but had set a hearing for May 24.

The Senate Intelligence Committee also wants Mr Comey to appear before a panel in both open and closed sessions, and to provide any written notes from communications with the White House on investigations into Russian election interference.

The White House has said Mr Trump would be interviewing four potential candidates to replace Mr Comey, who he sacked last week.

White House press secretary Sean Spicer said Mr Trump would meet with former Connecticut senator Joe Lieberman, former Oklahoma governor Frank Keating, FBI acting director Andrew McCabe and former top FBI official Richard McFeely.

Mr Trump has suggested he hopes to name Mr Comey's successor before he departs for Saudi Arabia and Israel on Friday for his first overseas trip as president.

'No politician has been treated worse': Trump

Mr Trump himself has not directly addressed the latest allegations, but the growing questions about his conduct were on his mind as he spoke to new graduates at the US Coast Guard Academy overnight.

"No politician in history, and I say this with great surety, has been treated worse or more unfairly," Mr Trump said.

"You can't let the critics and the naysayers get in the way of your dreams … I guess that's why we won.

"Adversity makes you stronger. Don't give in, don't back down … and the more righteous your fight, the more opposition that you will face."

Mr Trump didn't mention Mr Comey during the nearly half-hour address.

Experts warn Israeli agent may be compromised

Two US officials said on Monday that Mr Trump had disclosed highly classified information to Mr Lavrov about a planned Islamic State operation, plunging the White House into another controversy just months into Mr Trump's short tenure in office.

The New York Times, citing a current and a former US official, reported on Tuesday the information Mr Trump divulged came from an Israeli intelligence asset based in IS-held territory in Syria.

Israeli officials have declined to confirm whether they were the source of the information Mr Trump shared, but have been quick to say counter-terrorism coordination with the US is strong.

Mr Trump confirmed via Twitter that during a meeting with Mr Lavrov at the White House last week he shared information related to a potential airline plot by Islamic State, thought to involve a laptop bomb.

Israeli intelligence experts said they are gravely concerned the alleged incident may have compromised an Israeli agent, but do not expect any long-term consequences for intelligence cooperation.

They said Israel had developed a deep network of human and signal intelligence across the region and it was plausible that it had managed to infiltrate IS as part of that long-running effort.

"Israeli intelligence agencies have shown that they can have such human sources," said Aviv Oreg, former head of the Al Qaeda and global jihad desk in the army's military intelligence department, who now runs a counter-terrorism consultancy.

"It would take a lot to put someone inside ISIS. If there is an agent, I'm sure it's the only one.

"If we have really lost a human source over there, it's a major loss and it will take years to regenerate another one."

Sorry, this video has expired Donald Trump and National Security Adviser HR McMaster defend sharing of information with Russia

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