Susan Rice, former national security advisor under President Barack Obama, is no longer slated to provide testimony to the House Intelligence Committee this Tuesday.
Fox News reported last week that Rice's testimony was scheduled, and is now reporting "that session has apparently been postponed."
Her testimony is still expected at a later date.
Rice became the flashpoint in the debates over leaks about the Trump administration after she was the focal point of a Bloomberg report that said she had requested the "unmasking" of the names of some U.S. citizens who were accidentally caught up in routine surveillance of foreign targets.
As the Russia investigations were in their initial phases, the Trump administration was rocked when the transcript of a surveilled phone call between then-National Security Advisor Mike Flynn and Russian Ambassador Sergey Kislyak was leaked to the press. The leak showed Flynn's account of the conversation he gave to the administration was not accurate, ultimately leading to his dismissal.
In a statement, Flynn said he had, "inadvertently briefed the Vice President Elect and others with incomplete information" regarding the conversation.
But the issue also raised questions over what seemed to be on its face a leak by someone from within the intelligence community. And the leak seemed to be related to the "unmasking" of the names of people associated with the Trump campaign.
The unmasking issues seemed likely to be part of the questioning Rice would face before the committee.
The committee still has a subpoena to the National Security Agency seeking documents related to Rice's unmasking activity in 2016.