Sean Cairncross

Sean Stuart Cairncross (born July 12, 1974) was the chief executive officer of the Millennium Challenge Corporation from 2019 to 2020, and a former senior adviser to U.S. President Donald Trump.^[2][3][4] Recently, he has served as the chief operating officer for the Republican National Committee.

Sean S. Cairncross
United States National Cyber Director
Nominee
Assumed office TBD
President	Donald Trump
Preceded by	Harry Coker
Chief Executive Officer of the Millennium Challenge Corporation
In office June 24, 2019 – January 20, 2021
President	Donald Trump
Succeeded by	Mahmoud Bah (acting)
Personal details
Born	(1974-07-12) July 12, 1974 (age 50) Ramsey, Minnesota, United States[1]
Political party	Republican

He was nominated to be the National Cyber Director on February 11, 2025.^[5] If confirmed, he would succeed Harry Coker, the previous National Cyber Director.

References

1. "FamilySearch.org". The Church of Jesus Christ of Latter-day Saints.
2. Suebsaeng, Asawin; Markay, Lachlan (April 2, 2019). "The Far Right's Witch Hunt Inside the Trump White House". The Daily Beast. Retrieved January 30, 2019.
3. Karni, Annie; Haberman, Maggie (January 29, 2019). "The Many Ways to Leave the White House". The New York Times. Retrieved January 30, 2019.
4. "PN113 - Nomination of Sean Cairncross for Millennium Challenge Corporation, 116th Congress (2019-2020)". June 18, 2019.
5. Sabin, Sam (February 12, 2025). "A former RNC executive is President Trump's pick to be national cyber director". Axios. Retrieved February 12, 2025.

External links

• Biography at Millennium Challenge Corporation
• Washington Post
• CNN