Christopher P. Liddell has held senior roles in politics, the private sector, and philanthropy. He was White House Deputy Chief of Staff during the Trump Administration, and has been involved in three presidential transition cycles, including the White House operational head of the transition to the Biden Administration, where he played a key role. In the private sector, he has been Chief Financial Officer of several major companies, including Microsoft and General Motors. Liddell graduated with a Bachelor of Engineering from Auckland University and a Master of Philosophy from the University of Oxford.