Our most-read: If IEEPA tariffs don’t pass muster, then …

Topping the charts this week: If IEEPA tariffs come a cropper, Sen. Cassidy has a plan . Sen. Bill Cassidy (R-LA), the leading Republican advocate of carbon border adjustment fees, believes carbon taxation, tweaked, could be a promising option if the Supreme Court rejects the administration’s imposition of tariffs under the International Emergency Economic Powers Act. The border adjustment, taxing imports with higher carbon intensity than U.S. equivalents, has been proposed for several years without gaining much congressional traction. But...