evidence: The American Action Forum, a center-right think tank, has projected additional costs per household of $1,700 to $2,350 annually. The Peterson Institute of International Economics, another Washington, D.C.-based think tank, projected that such tariffs would cost a middle-income household about $1,700 extra each year. A more recent estimate, from the liberal group the Center for American Progress Action, came up with a $3,900 figure, but that was based on the high end of a 10% to 20% tariff range that Trump on one occasion speculated about.