Experts Increasingly Concerned After Trump Insists on 'Trying to Find Out' Who Whistleblower Is: 'He Is Putting This Person At Risk'

President Donald Trump's continued attacks against the anonymous whistleblower behind the report that could see the U.S. leader impeached have sparked outcry from government watchdogs and the legal community, with many experts increasingly concerned for the whistleblower's safety.

Renewing his demands to know the identity of the whistleblower, Trump told reporters in the Oval Office on Monday that the White House is "trying to find out" who the whistleblower is.

The president's demands are resulting in growing concerns for safety of the whistleblower, who filed a complaint after Trump asked Ukrainian President Volodymyr Zelensky in a July phone call to investigate his 2020 political rival Joe Biden, just days after he decided to withhold a U.S. military aid package from the country.

The whistleblower's lawyer, Andrew Bakaj, made clear in a statement on Twitter Monday that his client is "entitled to anonymity," according to the law.

"Law and policy support this and the individual is not to be retaliated against," Bakaj wrote.

After the president suggested on Sunday that the whistleblower's complaint might be "fraudulent," without any evidence, Bakaj wrote about how such complaints are processed.

"All Inspectors General and their staff—Intelligence Community or otherwise—must vet an incoming complaint. A complaint is not accepted merely on its face. Period," he wrote.

"As we know, the ICIG initiated a preliminary investigation where the allegations were vetted through fact-finding via other, direct evidence," Bakaj wrote. "Thus, anyone suggesting otherwise lacks a fundamental understanding of the investigative process."

In a letter sent on Saturday to Joseph Maguire, the acting director of National Intelligence, Bakaj warned that Trump's public outrage over the whistleblower's report had created "serious concerns for our client's personal safety."

In the days since, a number of government watchdogs and legal experts have joined in sounding the alarm, with Evan McMullin, the executive director of the Stand Up Republic Foundation and a former CIA operations officer, asserting that he was "increasingly concerned about the whistleblower's safety."

"He faces threats from an abusive president and from the extremist elements of his base," McMullin said in a tweet.

With a tentative agreement in place for the whistleblower to testify before members of Congress, McMullin said that "the House Intel Committee should seriously consider limiting the number of members" who are allowed to learn the whistleblower's identity, "even as he testifies."

The Center for American Progress Action Fund also slammed the president's comments, asserting that "Trump is endangering the whistleblower's safety."

"This is how dictators behave," the organization said.

Meanwhile, Renato Mariotti, a former federal prosecutor and CNN legal analyst, further accused Trump of "trying to retaliate against a witness in plain sight," despite the fact that the "whistleblower's identity is protected by law."

Political scientist Miranda Yaver also weighed in, calling on "every legislator" to be asked on the record "whether they approve" of Trump "threatening the safety of a whistleblower who lawfully reported [White House] illegal activity" and "soliciting foreign interference in U.S. elections."

Despite the widespread outcry, Trump has continued to rail against the whistleblower. "Why aren't we entitled to interview [and] learn everything about...the whistleblower, and also the person who gave all of the false information to him?" the president asked in the tweet on Tuesday.

"This is simply about a phone conversation that could not have been nicer, warmer, or better. No pressure at all (as confirmed by Ukrainian Pres.). It is just another Democrat Hoax!" the U.S. leader wrote.