Sen. Elizabeth Warren is urging the Federal Trade Commission and the Justice Department to closely review—and, if warranted, block—Dick’s Sporting Goods’ proposed $2.4 billion acquisition of Foot Locker. In a letter sent late Tuesday and seen by CNBC, the Massachusetts Democrat said the tie-up could eliminate head-to-head rivalry between the chains, cut jobs, and leave consumers facing higher prices. Warren argued that merging the two retailers would create a de-facto duopoly with Britain’s JD Sports, giving the two largest players control over roughly 5,000 athletic-footwear stores nationwide. She warned that the greater bargaining power of a combined company could squeeze smaller retailers and suppliers, noting a Credit Karma survey showing more than half of U.S. parents expect to forgo necessities to cover back-to-school costs. The request lands amid shifting antitrust enforcement. While the Biden administration blocked several high-profile mergers, early moves under President Donald Trump’s new FTC leadership suggest a potentially softer stance. Former FTC attorney Amanda Lewis told CNBC the deal’s roughly 15% share of the sporting-goods market may prompt only limited divestitures, though Warren’s intervention seeks a tougher review.