| Title | De facto Director (Senior Officer Performing the Duties) |
| Start Date | 2019-06-10 |
| End Date | 2021-01-20 |
| Is Current | no |
| Executive | yes |
| Notes | Concurrently when serving as Senior Official Performing the Duties of the United States Deputy Secretary of Homeland Security. His appointment as Acting USCIS Director by the Donald Trump administration was ruled unlawful by U.S. District Judge Randolph Moss in March 2020, who found it to be in violation of the Federal Vacancies Reform Act of 1998. Later that year, the Government Accountability Office ruled his appointment as the acting Deputy Secretary illegal, as well. |