Calls are growing for Special Counsel Robert Mueller's Russia investigation to be shut down in light of revelations that an anti-Trump FBI agent who helped protect Hillary Clinton had a leading role.

According to reports, Peter Strzok first signed the Russia investigation into existence and interviewed Michael Flynn. He also softened former FBI Director James Comey's language relating to Hillary Clinton's email investigation by describing her conduct as "extremely careless" rather than the original language of "grossly negligent."

Strzok was removed from the Russia investigation after he exchanged anti-Trump text messages with a colleague with whom he was having an extra-marital affair.

Many are now asserting that the Mueller investigation is proving to be exactly what President Trump has described it as all along, a politically driven witch hunt, and should be shut down.

"The Clinton investigation needs to be reopened and the Mueller investigation needs to be shut down until we figure out how badly it's been politicized," Judicial Watch president Tom Fitton told Tucker Carlson last night.

Fitton asserted that the Justice Department and the FBI became "arms of the Clinton campaign" and that General Flynn was subjected to an "ambush interview".