A former laboratory director for the failed Silicon Valley blood-testing startup, Theranos, testified against the company’s former CEO Elizabeth Holmes for a second time on Monday, diminishing her chances for a new trial.

Lawyers for Holmes and federal prosecutors questioned Dr. Adam Rosendorff under oath during an evidentiary hearing on Monday. The hearing was sparked by Holmes’ claim that Dr. Adam Rosendorff’s post-trial statements to her romantic partner Billy Evans conflicted with those he made at trial. In January, a jury found Holmes guilty of using her now defunct blood diagnostics company, Theranos, to defraud investors.

"Do you still stand by your testimony?" U.S. Assistant Attorney John Bostic asked Rosendorff, according to Law 360’s Dorothy Atkins. "Absolutely, I do," Rosendorff said.

During Holmes’ trial, Rosendorff testified on behalf of the government, saying he felt pressured to rapidly expand Theranos’ blood-testing system, despite problems with its technology.

However, Holmes contends that Rosendorff sought out Holmes at the couple’s Woodside, California home on Aug. 8, seven months after Holmes' trial. In a conversation with Evans, she claims, Rosendorff allegedly said that government prosecutors made his testimony about conditions at Theranos seem worse than they actually were. Holmes argues that a mischaracterization of Rosendorff's testimony could justify retrying the case.

But in a court filing and again in court Monday, the former Theranos lab chief made it clear that he stands by his prior testimony—and that he visited the residence to forgive the 38-year-old Holmes, not to recant his statements under oath.

On the stand Monday, Law 360's Atkins Tweeted that Rosendorff told Wade that he showed up at Holmes' home after feeling distressed that Holmes' child, born in August 2021 around a month before the start of her trial, would be raised at first without her mother, if Holmes is sentenced to serve time in prison. Rosendorff reportedly added that he understood Holmes to be pregnant with a second child.