Eugene Gu

As of May 24, 2020, Gu is CEO of Cool Quit, a company based in California. He is not currently licensed to practice medicine in California, Arizona, Nevada or Oregon.

Gu was one of a group of Twitter users blocked by Donald Trump who sued the President for violating their first amendment rights in Knight First Amendment Institute v. Trump, and won a declaratory judgment on May 2018.

Gu received notice from Vanderbilt in May 2018 confirming that his residency contract would not be renewed after the third year of what is usually a five-year residency; the fourth year would have started on July 1, 2018. In a letter addressed to Gu, VUMC cited performance issues—as it did when he was placed on leave. A May 17 letter to Gu from VUMC General Counsel Michael Regier, which was obtained by the Duke Chronicle, cited "lack of sufficient improvement in performance and conduct in key areas."

Gu is one of seven Twitter users who filed a lawsuit against U.S. President Donald Trump in July 2017 after being blocked from Trump's personal @realDonaldTrump account; the case is Knight First Amendment Institute v. Trump. On May 23, 2018, federal judge Naomi Buchwald ruled that President Trump cannot block his critics on Twitter in violation of the First Amendment.

In March 2016, Gu, in his role as CEO of Ganogen, was subpoenaed by the United States House Select Investigative Panel on Planned Parenthood that was created in response to the Planned Parenthood 2015 undercover videos controversy, to testify about his research involving human fetal tissue. Gu has since spoken out about what he perceives to be the unfair treatment and intimidation of researchers and physicians by the panel, which included the panel releasing the names, addresses, and contact information of people who work with fetal tissue. Gu was recognized by the Union of Concerned Scientists for his response to the panel investigation and criticism from pro-life activists.

He started a surgical residency at Vanderbilt University Medical Center in 2015. Vanderbilt put Gu on administrative leave for two weeks in November 2017, and placed him on probation until March 2018. Gu said this was due to his tweets opposing white supremacy; Vanderbilt was unable to comment on personnel matters but stated that the leave was based on Vanderbilt's policies, including those concerning use of social media.

Gu was married, and the marriage ended in divorce in October 2015. His wife requested a one-month restraining order against him which was granted in February 2015, based on four allegations of domestic violence going back to 2013, the last of which involved the police being called and Gu being arrested in February 2015. His ex-wife allowed the restraining order to lapse and the court records were eventually expunged. Responding to Gu's activism against his father, Donald Trump Jr. alleged Gu was a "wife beater." Gu denied all allegations of domestic violence.

In 2012 Gu and Nick K. Chang, who had also gone to Stanford and was a Duke medical student, founded Ganogen, Inc., as a vehicle to further develop these methods. Gu put the work on hold when he started his residency, and took down the company's website after he was harassed in the wake of the Planned Parenthood 2015 undercover videos controversy. He had decided in early 2016 to convert the company to nonprofit. He put the company's website back up when he learned he had been subpoenaed by Congress in March 2016.

Gu earned his undergraduate degree from Stanford University in 2008 in biology, then earned his M.D. from Duke University School of Medicine in 2015.

Eugene Gu (born March 5, 1986) is a former resident physician who is politically active on social media and has been the subject of public attention due to his lawsuit against Donald Trump. While Gu was in medical school, he founded a company called Ganogen to develop methods to use fetal tissue implants in organ transplantation. Work at Ganogen had ceased when he started his residency in 2015, but in 2016 he was subpoenaed as CEO of the company by the United States House Select Investigative Panel on Planned Parenthood following the Planned Parenthood 2015 undercover videos controversy.