Presidential Periscope President Joe Biden and First Lady Dr. Jill Biden operate the periscope using a video game controller alongside U.S. Fleet Forces commander Navy Adm. Daryl Caudle, right, and Navy Cmdr. Matthew Horton, commanding officer of the USS Delaware, following the submarine’s official commissioning ceremony in Wilmington, Del., April 2, 2022. SHARE IMAGE: Download Image: Full Size (4.61 MB) Photo By: Navy Chief Petty Officer Joshua Karsten VIRIN: 220402-N-GR655-1000.JPG Photo Gallery