A top official on the National Economic Council has reportedly resigned after being told that he did not qualify for a full security clearance.
George David Banks, a special assistant to the president for international energy and environmental policy, resigned Tuesday, according to Politico, making him the third White House official to step down in the past week.
Reports have found that dozens of White House officials have been operating without a full security clearance.
The issue was thrust into the spotlight after former staff secretary Rob Porter resigned last week over accusations of domestic abuse. Porter had been working under an interim security clearance.
Later, speechwriter David Sorensen, who was also accused of domestic abuse, stepped down on Friday.
The White House has been under scrutiny for its handling of the Porter case, which has also led to questions about how it determined who is granted a security clearance.