The move comes as her office has placed escalating scrutiny on Obama administration officials involved in a review of Russian election interference.

The US government security clearances of at least 37 current and former national security officials have been revoked by Director of National Intelligence Tulsi Gabbard, according to a memo obtained by CNN.

Gabbard has repeatedly alleged weaponization of the U.S. intelligence community, and last month the U.S. Department of Justice said it was forming a strike force to assess her claims.