The White House has released documents detailing how the FBI initiated a counterintelligence investigation following President Donald J. Trump’s dismissal of former FBI Director James Comey in May 2017. The probe, codenamed “Oxferd Comma”—a misspelling of “Oxford Comma”—was designed to determine whether Trump acted under Russian influence or obstructed an ongoing investigation.
According to an internal FBI memo dated May 16, 2017, investigators examined whether Trump was directed, controlled, or coordinated by the Russian government in ways that threatened U.S. national security or violated federal law.
The inquiry cited several factors: information from the discredited Crossfire Hurricane investigation, Trump’s interactions with Comey, discussions about the Republican Party’s 2016 platform on Ukraine, and alleged business ties to Russia. However, the FBI noted that while the circumstances surrounding Comey’s firing could support an inference that the Russia investigation influenced Trump’s decision, the opening of the case did not mean allegations were substantiated.
Subsequent developments include a 2019 investigation by Special Counsel Robert Mueller, which found no established coordination between the Trump campaign and Russia but declined to reach a prosecutorial decision on obstruction. In 2023, Special Counsel John Durham concluded that the FBI acted with bias and lacked sufficient evidence to justify opening the full Crossfire Hurricane investigation. A separate 2019 Justice Department inspector general review also found significant errors in surveillance applications targeting former Trump campaign adviser Carter Page.
The White House release clarified that the investigation’s codename was “Oxferd Comma,” a misspelling of “Oxford Comma.” Former acting Assistant Attorney General Jeff Clark suggested that a character in the term—specifically, the letter “o” being replaced by a zero—may have been intended to obscure records from Freedom of Information Act searches.
Additionally, Crossfire Hurricane—the FBI’s 2016 investigation into Trump campaign ties with Russia—was criticized in 2023 by Special Counsel John Durham as lacking sufficient evidence to justify its launch.