Today the Supreme Court held, 8-1, in Lopez v. Gonzales that conduct made a felony under state law is not a "felony punishable under the Controlled Substances Act" that could trigger deportation under the Immigration and Naturalization Act if it is not punishable as a felony under the CSA. Justice Souter wrote the majority opinion. Justice Thomas dissented "[b]ecause a plain reading of the statute would avoid the ambiguities and anomalies created by today's majority opinion." SCOTUSBlog has more here.
Lopez v. Gonzales: