A former Donald Trump campaign aide who is under a cloud of suspicion over his alleged Russia ties said Thursday that he has never met the president – and was only a casual foreign policy adviser to his campaign.

'I was an informal, unpaid volunteer,' Carter Page said on 'CBS This Morning' of his role advising the campaign on foreign policy.

'And at the end of the day, what did I do? Literally someone who is putting signs on yards in Idaho did more than I did.'

Asked if it's true that he has never met the president, including when Trump was a candidate, Page responded: 'That's correct.'

Trump lashed out at congressional Democrats on Wednesday for withdrawing an invitation for Page to testify in an intelligence committee hearing, saying the case against him is falling apart.

Former Trump campaign volunteer Carter Page, under fire for allegedly colluding with Moscow to tilt the election in Donald Trump's favor, says he has never met the president

President Donald Trump lashed out at House Intelligence Committee Democrats on Wednesday after they withdrew an invitation for Page to testify

Page, a former Trump campaign adviser, was accused of colluding with Moscow – based largely on the discredited 'dodgy dossier'

'So now it is reported that the Democrats, who have excoriated Carter Page about Russia, don't want him to testify,' the president tweeted.

'He blows away their case against him & now wants to clear his name by showing "the false or misleading testimony by James Comey, John Brennan..." Witch Hunt!'

Page is a target of lawmakers investigating possible ties between Trump's campaign and Russia during the election season.

But he insists that the FBI and the CIA are not telling the truth about his role.

'Everything, or a vast majority of what's been out there from the get-go is completely false and misleading,' he said on CBS.

Trump blasted Democrats on Wednesday for carrying out a 'witch hunt' against Page

'CBS This Morning' co-host Charlie Rose asked Page: 'Did you have conversations with Russian agents, did you talk about sanctions, and did you collude with them?' Page said 'no'

Page's name was inserted into the national controversy about alleged Trump-Russia ties when his name appeared in what has become known as the 'dodgy dossier' – an error-riddled intelligence summary about candidate Trump compiled by a former British agent.

Co-host Charlie Rose asked Page flatly: 'Did you have conversations with Russian agents, did you talk about sanctions, and did you collude with them?'

'Across the board, no,' Page replied, adding: 'All I know is what's in the press.'

He also waved off claims leaked to media which put him in a meeting with Russian ambassador Sergey Kislyak during last year's Republican National Convention.

'"Meeting" is a technical term,' said Page. 'I said hello to him a couple of times at a conference in Cleveland during the convention.'

House Intelligence Committee ranking Democrat Adam Schiff pulled the rug out from under Page as he prepared to testify

Page complained in a letter this week to the committee that he had 'learned from your Committee staff on this Memorial Day holiday that I might not be immediately afforded the opportunity to address the false or misleading testimony by James Comey, John Brennan, et al. as per our previously scheduled appointment for next week.'

'In the interest of finally providing the American people with some accurate information at long last, I hope that we can proceed with this straight dialogue soon.'

Trump's tweets followed a 'Fox & Friends' segment about Democrats' decision to freeze Page out of their hearings.

Former Trump campaign manager Corey Lewandowski said during the broadcast that 'if there was any information that he had which was relevant – which there isn't – obviously the Senate and other inquiries would want to have that conversation with him.'

Former Trump campaign manager Corey Lewandowski said Wednesday morning that 'there is no evidence that anything ever took place that was inappropriate or wrong'

'But the bottom line is there's no collusion. There's never been collusion. This is clearly something that, as they continue to look into, there is no evidence that anything ever took place that was inappropriate or wrong. Not by the president, not by the candidate, not by the campaign or anybody else. And so it sounds like their case is starting to fall apart before it even begins.'

Page's letter blasts Comey and Brennan for relying on an investigation based on 'the apparent disregard for truthful information.'

'[I]t has grown more important than ever that I be afforded the opportunity to explain the truth,' he wrote.

'In particular, regarding all of the associated nonsensical lies stated specifically against me during the recent testimony by various senior Obama administration appointees. For this reason, I hope that my future testimony might be allowed.'