The Trump administration's relationship with the media is growing increasingly bitter three days into his presidency - as the President's aides accuse journalists of focusing on stories that show The Donald in a poor light.

White House chief of staff Reince Priebus is the latest to wade into the fray, after Press Secretary Sean Spicer was criticized for using false information as he condemned the media for its coverage of inauguration crowds.

White House Counsel Kellyanne Conway's attempt to claim Spicer was providing 'alternative facts' added further fuel to the fire.

Trump's aides claim the media is unfairly focusing on the seemingly small crowds at his inauguration, while many in the media accuse the White House of trying to deny overwhelming evidence that his crowds were smaller than Obama.

Sean Spicer will host a press conference at 1.30pm today where he is sure to face some pointed questions.

This comes after Priebus hit out at the media on Sunday saying they are trying to 'delegitimize' Trump at all costs.

Priebus got into a heated exchange with Fox News anchor Chris Wallace on Sunday when he was asked about the claims made by the president and his press secretary Sean Spicer regarding the size of the inauguration crowd.

'The point is not the crowd size. There's an obsession by the media to delegitimize this President,' Priebus said.

White House chief of staff Reince Priebus hit out the media in an interview on Sunday saying they are trying to 'delegitimize' Trump

'We are not going to sit around and let it happen. We are going to fight back, tooth and nail every day and twice on Sunday.'

He repeated Spicer's assertions made during a press conference on Saturday that the media manipulated photographs of the National Mall to make the crowds on Friday look smaller than they really were.

Aerial photographs showed the crowds were significantly smaller than when Barack Obama took over as president in 2009. One of the most widely used photos has been confirmed by Reuters as having been taken at 12.01pm on Friday as Trump was being sworn in.

Spicer's assertion that 'this was the largest audience to ever witness an inauguration - period' was widely challenged in media reports.

Wallace confronted Trump's Chief of Staff asking him to look at the aerial photos side by side and say which one had the bigger crowd.

'You're also not saying that that picture was taken before (Trump) was even speaking,' Priebus said as he defended the comments.

Wallace interjected: 'I was there, I was there on the mall.'

Priebus got into a heated exchange with Fox News anchor Chris Wallace when he was asked about the incorrect claims made by Trump team regarding the size of the inauguration crowd

Aerial photographs showed the crowds at Trump's inauguration on Friday (left) were significantly smaller than when Barack Obama took over as president in 2009 (right). Priebus argued that this photo failed to note that it was taken before Trump's speech - although Reuters says it was taken at 12.01pm as Trump was being sworn in.

White House press secretary Sean Spicer made the dubious claim that the crowd on Friday 'was the largest audience to ever witness an inauguration - period'

Spicer came out swinging in his first media briefing on Saturday and is set to face journalists again in the first official Trump press briefing on Monday

The anchor called the conversation 'ridiculous' and asked for the photos to be put up again when Priebus insisted the crowds went back to the Washington Monument.

'You can keep putting the picture up, wait a second. I could take an aerial picture right now, Chris, and I can say, 'Look at the difference. If you're not comparing apples to apples, it doesn't matter,' Priebus said.

The Chief of Staff argued that the media chose to focus on comparing the crowd sizes instead of the substance of Trump's inaugural speech.

Wallace hit back saying Trump and his team were responsible for the attendance row given the president's decision to make it his main theme during his first visit to the CIA.

'(Trump) could've given a news conference yesterday, talked about the agenda, talked about the executive actions he's going to sign. He talks about crowd sizes,' Wallace said.

Wallace (pictured) confronted Trump's Chief of Staff asking him to look at the aerial photos side by side and say which one had the bigger crowd

Donald Trump was sworn in as the 45th president of the United States by Chief Justice John Roberts on Friday morning

The new president spoke at CIA headquarters on Saturday about how many people watched his inauguration as he hit back at media reports

The new president launched his own attack on the 'dishonest' media earlier Saturday at CIA headquarters, telling employees of the spy agency that reported attendance numbers for his swearing-in dramatically undershot the truth.

There have been claims that the aerial photo that has been used to compare Trump's inauguration attendance to Obama's in 2009 may have shot long before the ceremony began.

But Reuters editor Jim Bourg hit back on Sunday saying the photo was taken at exactly 12:01:18pm on Friday during Trump's inauguration.

'Only one news organization had a still photographer atop the Washington monument for the inauguration and I assigned him to be there,' he wrote on Facebook.

'This photo by Reuters News Pictures staff photographer Lucas Jackson was taken at 12:01:18 p.m. on Friday and not much earlier as many people are trying to claim.'

Trump (pictured leaving the CIA) launched his own attack on the 'dishonest' media on Saturday at CIA headquarters

Reuters editor Jim Bourg hit back on Sunday saying this photo was taken at exactly 12:01:18pm on Friday during Trump's inauguration. Some have claimed it was taken earlier in the day, which is why the crowd appeared less than Obama's inauguration in 2009

Trump and his senior team sparring with the media has dominated his first weekend in office, eclipsing debate over policy and Cabinet appointments.

It comes as Spicer is set to face the media again on Monday at the first official Trump administration press briefing.

Spicer came out swinging in his first media briefing on Saturday when he accused journalists of 'deliberately false reporting' on Trump's inauguration.

But in the five minute tongue-lashing he gave reporters on Saturday, Spicer himself used several pieces of false information as he blasted the media for comparing the crowd size to Barack Obama's inauguration.

The inaccurate information centered around the number of Metro riders on inauguration day, security measures, floor coverings and the number of viewers.

Obama: At Barack Obama's 2009 inauguration, attendance at the National Mall was filled with hundreds of thousands of people gathered to witness America's first African-American president being sworn in

Trump: This was the view towards the Washington Monument, taken from a platform a few hundred yards from the East Portico of the Capitol during Trump's inauguration