Two-time presidential failure Hillary Clinton accused President Donald Trump of lacking evidence to support his claim that biased Google search results shifted votes in her favor in 2016.

However, she’s since been contradicted by Dr. Robert Epstein, the nation’s leading expert on the psychological effects of search engines — even though he himself was a Hillary supporter!

It was Dr. Epstein’s research that Trump cited Monday, leading Clinton to tweet that the psychologist and search engine expert’s findings had been “debunked” and was based on a sample of “21 undecided voters.”

Dr. Epstein says both of Clinton’s claims are wrong.

The debunked study you’re referring to was based on 21 undecided voters. For context that’s about half the number of people associated with your campaign who have been indicted. https://t.co/0zHnWvGjSv — Hillary Clinton (@HillaryClinton) August 19, 2019

“I was and still am a strong supporter of Hillary Clinton,” said Dr. Epstein, in a comment to Breitbart News. “Her tweet, however, is inaccurate.”

“I’m not aware that any credible authority has ‘debunked’ my 2016 election monitoring project. When Google’s CEO said, in December 2018, that ‘we take issue with Epstein’s methodology,’ that’s hardly a debunking.”

Dr. Epstein also took issue with the allegation that his research was based on 21 undecided voters.

“My numbers are based on two things” said Epstein. “Results from my 2016 monitoring project, which preserved 13,207 election-related search results, along with the 98,044 web pages to which the search results linked. he data were collected by 95 field agents in 24 states — all registered voters — all of whom conducted their searches by drawing from a list 250 different search terms which independent raters had judged to be unbiased politically.”

The psychologist also highlighted “years of conducting randomized, controlled, counterbalanced, double-blind experiments — now encompassing tens of thousands of participants and five national elections in four countries — which allow me to calculate fairly precisely the impact that biased search results have on undecided voters.”

Epstein said his 2016 research “found significant pro-Hillary bias on Google.com, but not on Bing or Yahoo, and the pro-Hillary bias was present in all ten search positions on the first page of Google search results.”

“The minimum number of votes which I believe Google’s biased search results shifted to Hillary Clinton in the months leading up to the 2016 election was 2.6 million, and that estimate is conservative. It is conservative because I had no way of measuring the impact that repeated exposures to Google’s biased content would have had on users over time. I also had no way of knowing whether Google used targeting to influence users.”

.@HillaryClinton, whom I have strongly supported for many years, told blatant lies about me today. As a result, I have been subjected to widespread condemnation by mainstream media. I'm going to fight this. Stay tuned tomorrow for my first-ever twitter storm. pic.twitter.com/CrPHMycVBu — Dr. Robert Epstein (@DrREpstein) August 20, 2019

However, Dr. Epstein also took issue with some of the claims made by President Donald Trump.

“Regarding the President’s tweet: I have never claimed that Google deliberately manipulated the 2016 election, and the upper limit I put on a possible vote shift was 10.4 million, not 16 million. ”

Are you a corporate or Big Tech insider who wants to confidentially reveal wrongdoing or political bias at your company? Reach out to Allum Bokhari at his secure email address allumbokhari@protonmail.com.

Allum Bokhari is the senior technology correspondent at Breitbart News.