(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.

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.

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