Last week, prosecutors filed a sentencing memo in his case, recommending that he serve four months of home detention. The memo noted that Mr. Straka had met with prosecutors earlier this month as part of his plea agreement and had been “cooperative” in answering their questions.

It remains unclear exactly what those questions were, but Mr. Straka’s lawyer, Bilal Essayli, offered a broad description in his client’s own sentencing memo, which was filed on Tuesday. In the memo, Mr. Essayli said that during Mr. Straka’s interview with prosecutors, “the government was focused on establishing an organized conspiracy between defendant, President Donald J. Trump, and allies of the former president to disrupt the joint session of Congress on Jan. 6.”

Mr. Straka “answered all questions truthfully and denied the existence of any such plot,” Mr. Essayli’s memo said.