Business Roundtable, the National Association of Manufacturers, and U.S. Chamber of Commerce have filed an amicus brief asking the U.S. Supreme Court to review Sonoco Products Company, et al., v. Department of Treasury, State of Michigan, a case that threatens to undermine the Multistate Tax Compact and its consistent treatment of taxation of companies doing businesses in more than one state.
UPDATE: May 22, 2017
On May 22, 2017, the Supreme Court denied the writ of certiorari sought in the Business Roundtable amicus brief.