Mastriano's attorneys called off the virtual appearance shortly after it began, sources said. His attorney, Tim Perlatore, disputed some procedural issues related to the deposition and questioned the legality of the subpoena Mastriano received from the panel, sources said.
"We were there for 15 minutes. It was clear that the Commission had failed to comply with the rules regarding the use of depository institutions. No,” Parlatore said. "If they can fairly and legally do so, or reach a resolution on how to conduct voluntary interviews that minimize the risk of election interference, we will be happy to provide information."
Mastriano is the Republican gubernatorial candidate for Pennsylvania and was a key figure in supporting former President Donald Trump's efforts to overturn the 2020 election. Mastriano also said he was one of a mob of Trump supporters on the Capitol grounds during the Jan. 6, 2021 riots, but did not enter the Capitol itself and pleaded not guilty to any charges. is not asked.
A committee spokesperson declined to comment on Mastriano's appearance.