Presidential Walk President Joe Biden walks in a Pentagon hallway with Vice President Kamala Harris, Secretary of Defense Lloyd J. Austin III and Chairman of the Joint Chiefs of Staff Army Gen. Mark A. Milley, Feb. 10, 2021. SHARE IMAGE: Download Image: Full Size (3.11 MB) Tags: Biden, President, Austin, Vice President, Defense Secretary, Harris Photo By: Lisa Ferdinando, DOD VIRIN: 210210-D-BN624-0329C.JPG Photo Gallery