Regional immigration is a nonstarter in Congress, but it is making headway in political circles outside the Beltway. Michigan Republican Gov. Rick Snyder recently called for a pool of visas to be made available to communities that have lost a certain percentage of their populations. Snyder has repeatedly said immigration is the best answer, really the only answer, to Detroit’s woes. “Get them a green card so they can really homestead,” he told the Michigan Public Radio Network.