Warren and Sen. Mike Lee, R-Utah, are urging War Secretary Pete Hegseth to make Trump's restrictions on stock buybacks for defense contractors permanent, according to a letter obtained by Fox News Digital. The bipartisan duo argue the policy is already changing how major defense companies spend their money and bolstering national security and military readiness. Staff for Warren and Lee reviewed recent earnings calls and financial reports from the top 20 publicly traded U.S. defense contractors. Capital spending is money companies put into long-term needs such as factories, equipment and new production lines. The reductions were not uniform: RTX’s reported payouts rose slightly year over year, while Lockheed, Northrop and General Dynamics reported declines.