(Bloomberg) -- President Donald Trump’s longtime ally Roger Stone, convicted of lying to Congress and tampering with a witness during the Russia investigation, is getting another month of freedom due to the pandemic.

Stone on Friday said his deadline to surrender to the federal Bureau of Prisons this week was moved to June 30 because of the outbreak, which can spread quickly behind bars. It’s the second time Stone’s surrender date has been delayed over the crisis, which has claimed more than 100,000 lives in the U.S.

U.S. District Judge Amy Berman Jackson sentenced the Republican operative in February to three years and four months in prison. Stone, 67, has appealed his conviction and accused the judge of being unfair.

“I continue to maintain my innocence of these fabricated and politically motivated charges and my conviction in a flawed trial with a biased judge,” Stone said in an email.

Read More: Roger Stone Gets Over Three Years in Jail for Trump Cover-Up

Jackson, frequently attacked by Trump on Twitter, denied Stone’s request for a new trial last month, rejecting his claim that the jury foreperson was dishonest and politically biased. The judge said the evidence of Stone’s guilt was overwhelming, including his own text messages and emails.

Stone was accused of lying to protect Trump during Special Counsel Robert Mueller’s 22-month Russia investigation. He was the last person charged in the probe. The trial included evidence that Trump knew about WikiLeaks’ plans to release hacked emails damaging to his rival, Hillary Clinton.

Stone said in a May 25 brief with the U.S. Court of Appeals in Washington that he’d seek review of Jackson’s rulings that barred him from raising at trial his claims of misconduct by Mueller and the Federal Bureau of Investigation, as well as evidence he says would show WikiLeaks didn’t receive stolen Democratic emails from Russia.

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