A longtime FBI agent is blowing the whistle on his former boss Robert Mueller, alleging the special counsel lied to Senate Intelligence Committee members about the Bureau’s surveillance program. Chuck Marler, a former agent staffed to the FBI’s Special Surveillance Group, says Mueller distorted key fact about spy activities undertaken by the task force.

Big League Politics reports:

In the Summer of 2005, two FBI employees in the SSG Program wrote a letter and mailed it to every member of the Senate Select Committee on Intelligence (SSCI). The two FBI employees were notified by Senator Kay Bailey Hutchison’s office of receipt of the letter. Those same two FBI employees and two additional employees wrote another letter and mailed it to the U.S. Office of Personnel Management (OPM). That opening letter to the OPM was very generic because their work is considered Secret due to their undercover status conducting Counter Terrorism and Counter Intelligence work. […] The two employees involved in the SSCI letter were informed by staff at Senator Hutchison’s Office of Mueller’s response to the letter which the two employees knew the response was not truthful. OPM opened a routine complaint/inquiry based on the letter that they received from the four FBI employees. The OPM officer that had the misfortune to be assigned the job, sent an initiation letter to FBI Headquarters to gain security clearance to begin her assessment. She was immediately threatened with arrest by FBI agents. Subsequently and because of the letter, the four FBI employees were threatened with arrest, imprisonment, raids of their residences and loss of their job.

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Marler’s story raises more questions about Mueller’s growing credibility problem. The Russia probe is under intense scrutiny after reports revealed key investigator Peter Strzok was removed over anti-Trump texts.

The embattled agent not only sent anti-Trump texts, but was the FBI’s point man for the ‘Trump dossier,’ rumored to have communicated directly with Fusion GPS and ex-British intelligence officer Christopher Steele. Strzok isn’t the only member of Mueller’s team that is tainted by political bias.

According to the Wall Street Journal, Mueller’s deputy investigator, Andrew Weissmann, attended Hillary Clinton’s election night party in New York City.

In an email obtained by conservative watchdog group Judicial Watch, Andrew Weissmann, special counsel Robert Mueller’s right hand man, praised then-acting attorney general Sally Yates for standing up to President Trump’s travel ban order.

GOP Rep. Matt Gaetz is among the most vocal Mueller critics on Capitol Hill, having called for his resignation in a rousing House floor speech in November.