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(CNN) —  

Felix Sater is scheduled to testify behind closed doors in front of the House Intelligence Committee Tuesday morning, according to a person with knowledge of the matter.

Sater was originally scheduled to appear before the committee last month, but failed to show up because he overslept.

Politico first reported the rescheduled testimony.

Sater did not appear behind closed doors before the committee on June 21 because he overslept after he took a sedative, Sater told CNN. Sater said the impact of the sedative was stronger than he anticipated.

Sater was scheduled to appear before the committee for a second time following his 2017 appearance to discuss his work on Trump Tower Moscow with Trump’s former personal lawyer and fixer Michael Cohen.

The interview was a sign that the committee is turning its attention back toward the President’s financial dealings and potential foreign influence. House Intelligence Chairman Adam Schiff, a California Democrat, said at the time that Sater is one of several witnesses relating to Trump Tower Moscow that the committee has lined up.

Sater is the first significant witness from special counsel Robert Mueller’s report to be interviewed by the House Intelligence Committee, which is examining volume one of the special counsel’s investigation into Russian election interference, while the House Judiciary Committee probes the second volume on obstruction of justice.

Sater’s work with Cohen on the Trump Tower Moscow project was cited in the Mueller report, in which then-candidate Trump signed a letter of intent to pursue the deal but ultimately did not do so. The special counsel report details Sater’s efforts to arrange travel for Cohen and Trump to travel to Russia, Sater’s statements that the Russian government had to sign off on an agreement and his email to Cohen that suggested the project could help Trump become President.

“Our boy can become President of the USA and we can engineer it,” Sater wrote to Cohen.

Sater was initially supposed to testify publicly before the committee in March, but his testimony was delayed after the special counsel finished his investigation. Schiff said that they were putting the testimony on hold while they pursued the unredacted Mueller report and counterintelligence evidence he had collected.

This story has been updated.