Legalizing online gambling is an all or nothing proposition, even the American Gaming Association (AGA) knows this. Yesterday, the industry group representing the nation’s casinos decided to withdraw its support of online gambling, citing differences between casino operators. They know from a strictly business perspective, online gambling would change the face of their industry and so it makes sense to be united moving forward. Unfortunately, another more important association thinks differently. The National Governors Association (NGA), the “collective voice of the nation’s governors,” issued a letter earlier this week to Congressional leaders raising concerns that a nationwide ban on internet gambling would, as authors Gov. Robert Bentley (R-Ala.) and Gov. Earl Ray Tomblin (D-W.Va.) see it, interfere with state’s abilities to regulate the issue themselves.