Build a wall -- around the welfare state for non-US citizens

Wednesday, President Trump argued that “those seeking immigration into our country must be able to support themselves financially and should not use welfare for a period of at least five years.” That law is already on the books, but Trump’s instincts are correct on this issue. Congress can do a lot more to restrict access to welfare for immigrants, but it should go even further than Trump recommends — by denying access to welfare for all noncitizens.