http://www.dailykos.com/story/2014/12/11/1350997/-GOP-lawmaker-to-DC-residents-If-you-don-t-like-taxation-without-representation-move
"Congressional Republicans are once again showing their concern for local control by including a provision in the spending bill that would block Washington, DC, from legalizing marijuana. Residents of the District voted overwhelmingly for legalization in November, but it is within Congress' power to say "screw them," and that's just what Maryland Rep. Andy Harris is saying."
