Washington (CNN) Acting Director of National Intelligence Richard Grenell said late Monday he will not be briefing lawmakers on Tuesday about election security despite being expected on Capitol Hill by members of Congress to be on the panel of the country's most senior national security officials.

Grenell had been due to appear alongside the other senior officials in a pair of classified briefings to all members of the House and Senate. A list of top agency officials obtained by CNN from two congressional sources and a person familiar with the plans listed Grenell alongside National Security Agency Director Gen. Paul Nakasone, FBI Director Christopher Wray and others.

As of late Monday night, the list and guidance circulated to Congress had not changed. However, Grenell and the Office of the Director of National Intelligence denied that he would be briefing.

Grenell's office would not explain why his name was on the list sent around by multiple congressional offices, and did not respond to requests for comment until after CNN reported Grenell was expected to appear.

"ODNI did not communicate to Congress at any point that ADNI Grenell would participate in election security briefings scheduled for Mar. 10," agency spokesperson Maura Beard said in a statement Tuesday.

Read More