In a Feb. 9, 2024 letter to Defense Secretary Lloyd Austin, Sens. Marco Rubio (R-FL), Rick Scott (R-FL), Richard Blumenthal (D-CT), Jacky Rosen (D-NV), John Boozman (R-AR), Markwayne Mullin (R-OK), Mark Kelly (D-AZ) and Kyrsten Sinema (I-AZ) submit a list of questions regarding the Pentagon's National Defense Industrial Base Strategy.