Nominee for Deputy Secretary of Defense Stephen A. Feinberg listens to the opening remarks of a Senate Armed Services Committee in Washington, D.C., Feb. 25, 2025. (DoD photo by U.S. Air Force Senior Airman Madelyn Keech) WASHINGTON — Democratic Sen. Elizabeth Warren is raising concerns with deputy defense secretary nominee Stephen Feinberg’s ties to Ligado Networks , arguing that Feinberg’s family or the private equity firm he founded could financially benefit from the ongoing lawsuit between