A federal judge in California said Wednesday that then-President Donald Trump signed an affidavit saying voter fraud included in a 2020 election lawsuit was accurate, even though he was told the numbers were incorrect, reports Reuters.

U.S. District Judge David Carter made the revelation when he ordered attorney John Eastman to provide more emails to a congressional committee investigating the Jan. 6, 2021, attack on the U.S. Capitol by Trump supporters.

Eastman was one of Trump’s lawyers when the former president and his allies challenged his 2020 election loss to Joe Biden.

“The emails show that President Trump knew specific voter fraud numbers were wrong, but continued to promote those numbers both in court and to the public,” the judge wrote.

Carter previously ruled that Eastman and Trump likely committed a felony for trying to pressure their then-vice president to obstruct Congress.

The decision follows a lawsuit filed by Eastman to block disclosure of committee emails since Jan. 6 following a congressional subpoena.

Carter previously ordered Eastman to provide more than 200 emails to the committee after the attorney objected to the subpoena and argued the messages were confidential.

A judge said Wednesday that the vast majority of emails still sought by congressional investigators should not be released because the documents are covered by legal protections granted to attorneys and their clients.

But he said eight emails that would normally be protected by that defense had to be handed over to the commission after he found the messages had been used to commit a crime – one of the few times they can be raised as a legal defence.

Carter found four emails showing that Eastman and other lawyers suggested that the “primary purpose” of filing the lawsuits was to delay Congressional approval of the 2020 election results.

The judge said the four other emails “demonstrate an effort by President Trump and his lawyers to file false lawsuits in federal court to delay the January 6 vote.”

Trump and his allies have filed more than 60 lawsuits challenging the 2020 election, which Biden won, with some complaints alleging voter fraud without evidence to support the claims. Judges, some of whom were appointed by Trump, overwhelmingly dismissed those cases in federal courts.