(WASHINGTON) — Special counsel investigators are expected to question Trump lawyer Evan Corcoran Friday in testimony that could prove key to their decision on whether to charge former President Donald Trump with mishandling classified documents after leaving the White House and obstructing the government’s efforts to retrieve them, sources familiar with the matter told ABC News.

Corcoran was expected to testify as soon as Friday, sources said, after an appeals court ruled Wednesday that Corcoran must testify in the special counsel’s probe into Trump’s handling of classified materials after leaving the White House.

The three-judge panel on the D.C. Circuit Court of Appeals rejected an effort by Trump’s attorneys to block Corcoran from having to testify and hand over records to special counsel Jack Smith’s team, according to court records.

The appeals court ruling came five days after D.C. district judge Beryl Howell ordered that Corcoran should comply with a grand jury subpoena for testimony on six separate lines of inquiry over which Corcoran had previously asserted attorney-client privilege, sources familiar with the filing told ABC News.

According to sources familiar with the filing, Smith wants information from Corcoran on whether Trump or anyone else in his employ was aware of the signed certification that was drafted by Corcoran and signed by Trump attorney Christina Bobb, which was submitted in response to a May 11 subpoena from the DOJ seeking all remaining documents with classified markings in Trump’s possession.

That certification was later discovered to be false, prompting the eventual court-authorized search of Trump’s Mar-a-Lago estate in which FBI investigators recovered more than 100 classified documents — including some located in Trump’s personal office, according to previously released court documents.

Smith’s investigators specifically want to ask Corcoran whether Trump was aware of the statements in the certification, which claimed a “diligent search” of Mar-a-Lago had been conducted, and if Trump approved of it being provided to the government, sources familiar with the filing said.

Trump has repeatedly denied any wrongdoing in his handling of classified documents.

“There is no factual or legal basis or substance to any case against President Trump,” a Trump spokesperson told ABC News Wednesday. “The deranged Democrats and their comrades in the mainstream media are corrupting the legal process and weaponizing the justice system in order to manipulate public opinion, because they are clearly losing the political battle. The real story here is that prosecutors only attack lawyers when they have no case whatsoever.”

Smith was appointed by Attorney General Merrick Garland in November to oversee the investigation into Trump’s handling of classified documents as well as efforts by Trump and his allies to overturn the results of the 2020 election.

A spokesperson for the special counsel’s office declined to comment.

Katherine Faulders and Alexander Mallin, ABC News

(WASHINGTON) — Special counsel investigators are expected to question Trump lawyer Evan Corcoran Friday in testimony that could prove key to their decision on whether to charge former President Donald Trump with mishandling classified documents after leaving the White House and obstructing the government’s efforts to retrieve them, sources familiar with the matter told ABC News.

Corcoran was expected to testify as soon as Friday, sources said, after an appeals court ruled Wednesday that Corcoran must testify in the special counsel’s probe into Trump’s handling of classified materials after leaving the White House.

The three-judge panel on the D.C. Circuit Court of Appeals rejected an effort by Trump’s attorneys to block Corcoran from having to testify and hand over records to special counsel Jack Smith’s team, according to court records.

The appeals court ruling came five days after D.C. district judge Beryl Howell ordered that Corcoran should comply with a grand jury subpoena for testimony on six separate lines of inquiry over which Corcoran had previously asserted attorney-client privilege, sources familiar with the filing told ABC News.

According to sources familiar with the filing, Smith wants information from Corcoran on whether Trump or anyone else in his employ was aware of the signed certification that was drafted by Corcoran and signed by Trump attorney Christina Bobb, which was submitted in response to a May 11 subpoena from the DOJ seeking all remaining documents with classified markings in Trump’s possession.

That certification was later discovered to be false, prompting the eventual court-authorized search of Trump’s Mar-a-Lago estate in which FBI investigators recovered more than 100 classified documents — including some located in Trump’s personal office, according to previously released court documents.

Smith’s investigators specifically want to ask Corcoran whether Trump was aware of the statements in the certification, which claimed a “diligent search” of Mar-a-Lago had been conducted, and if Trump approved of it being provided to the government, sources familiar with the filing said.

Trump has repeatedly denied any wrongdoing in his handling of classified documents.

“There is no factual or legal basis or substance to any case against President Trump,” a Trump spokesperson told ABC News Wednesday. “The deranged Democrats and their comrades in the mainstream media are corrupting the legal process and weaponizing the justice system in order to manipulate public opinion, because they are clearly losing the political battle. The real story here is that prosecutors only attack lawyers when they have no case whatsoever.”

Smith was appointed by Attorney General Merrick Garland in November to oversee the investigation into Trump’s handling of classified documents as well as efforts by Trump and his allies to overturn the results of the 2020 election.

A spokesperson for the special counsel’s office declined to comment.

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