A post by @FirstSquawk on X.

U.S. Trade Representative Jamieson Greer said President Trump is prepared to take action on tariffs related to Mexico, according to a First Squawk post on X. The remark signals that tariff measures remain a live option in U.S.-Mexico trade policy rather than a deferred threat. It matters because tariff decisions can shift cross-border trade flows, input costs and risk sentiment across North American supply chains. Traders will watch for formal announcements specifying tariff rates, product coverage and effective dates, along with any Mexican response.