President George W. Bush's former White House press secretary Ari Fleischer blasted President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE's communications team Saturday, saying they were making "unforgivable" mistakes.

“Omissions are as harmful as contradictions because it seems like you’re hiding something,” Fleischer said, according to the Associated Press.

“From a communications standpoint, it’s unforgivable," he continued.

ADVERTISEMENT

The White House has been plagued by a slew of revelations surrounding the investigation of alleged ties between the Trump campaign and Russia during the 2016 election.

Most recently, it was revealed that Donald Trump Jr. met with a Russian lawyer and several others months ahead of the election to gain damaging information on Democratic rival Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE.

Trump Jr. ultimately said the meeting "went nowhere and it was apparent that that wasn’t what the meeting was actually about."

The Trump White House defended the meeting, but faced scrutiny over its response.

“The only thing I see inappropriate about the meeting was the people that leaked the information on the meeting after it was voluntarily disclosed,“ Deputy White House press secretary Sarah Huckabee Sanders said at an off-camera press briefing on Monday.

The president himself has also defended his son.

"My son is a wonderful young man. He took a meeting with a Russian lawyer, not a government lawyer, but a Russian lawyer," he said. "It was a short meeting. It was a meeting that went very, very quickly, very fast."

"I think from a practical standpoint most people would have taken that meeting."

The president's son-in-law and White House adviser, Jared Kushner pushed White House aides to offer more talking points and surrogates to defend Trump Jr. after the New York Times story on the president's son was published, according to Politico.