President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE claimed on Thursday that people working at the FBI were starting to speak out against former FBI Director James Comey James Brien ComeyDemocrats fear Russia interference could spoil bid to retake Senate Book: FBI sex crimes investigator helped trigger October 2016 public probe of Clinton emails Trump jabs at FBI director over testimony on Russia, antifa MORE and former Deputy FBI Director Andrew McCabe Andrew George McCabeGraham: Comey to testify about FBI's Russia probe, Mueller declined invitation Barr criticizes DOJ in speech declaring all agency power 'is invested in the attorney general' GOP votes to authorize subpoenas, depositions in Obama-era probe MORE.

Not surprisingly, the GREAT Men & Women of the FBI are starting to speak out against Comey, McCabe and all of the political corruption and poor leadership found within the top ranks of the FBI. Comey was a terrible and corrupt leader who inflicted great pain on the FBI! #SPYGATE — Donald J. Trump (@realDonaldTrump) May 24, 2018

It wasn't completely clear from Trump's tweet what he was referring to, though the Daily Caller reported on Tuesday that various FBI agents wanted Congress to subpoena them so they could talk about problems at the bureau under Comey and McCabe.

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However, other members of the intelligence community have hit back against Trump's claims, including his argument that the FBI had a spy embedded in his campaign for political purposes.

Several media reports have zeroed in on a Cambridge professor who acted as an informant in contacting three of Trump's campaign advisers to look into possible ties with Russia.

But there has been no evidence that someone was working on Trump's campaign as an FBI spy, and James Clapper James Robert ClapperOn China, Biden is no Nixon — and no Trump The Hill's 12:30 Report - Speculation over Biden's running mate announcement Trump slams former intelligence officials to explain 'reluctance to embrace' agencies MORE, the former director of national intelligence has criticized Trump's description of the activities as spying.

Comey responded to Trump's claim that he had lied in a tweet, saying he would lie about anything.

Dangerous time when our country is led by those who will lie about anything, backed by those who will believe anything, based on information from media sources that will say anything. Americans must break out of that bubble and seek truth. — James Comey (@Comey) May 23, 2018

Clapper also responded to Trump's declaration that Clapper misled Congress when he testified on the spying activities of the National Security Agency in 2013, saying he had simply “made a mistake” when responding to a question.

"The president's calling me a lying machine," Clapper said. "Well, okay. What that stems from is an exchange I had with Sen. [Ron] Wyden [D-Ore.] five years ago in March of 2013 about a surveillance program, and he was asking me about one, and I was thinking about another. So I made a mistake. I didn't lie."