The Trump campaign and administration were investigated for several years both by an internal counterintelligence probe at the FBI and a powerful special counsel. Many apparent abuses of power at the FBI during that probe have been found and are being officially investigated.
In August, fired FBI Director James Comey was the subject of a criminal referral from Justice Department Inspector General Michael Horowitz for illegal leaks to the media meant to undermine Trump and further the Russia investigation. The DoJ declined to prosecute. Former acting FBI Director Andrew McCabe was fired after the inspector general found he lied under oath to investigators about his own leaks. Many other officials involved in surveillance of the Trump campaign were fired, transferred, or left under pressure. Peter Strzok, the nation’s former top counterintelligence officer, was having an extramarital affair with FBI colleague Lisa Page, and their text messages betrayed extreme bias and unprofessional attitudes. In one text exchange, Strzok suggested the probe of Trump was an “insurance policy” in case Trump won in 2016.
Attorney General William Barr is investigating how the theory of Trump collusion with Russia was used to launch a probe of the political campaign. Veteran prosecutor John Durham is also investigating the origins of the probe, which led to the use of wiretaps, human informants, overseas intelligence assets, national security letters, and other surveillance by the FBI. Barr has testified that he is also looking into the role agencies other than the FBI played in the surveillance.