A study issued Wednesday says an expansion of casino gambling in Maryland will not produce the kind of revenue supporters say it will, the .
About 45 percent of the revenue promised from adding a casino in Prince George’s County and table games at Maryland casinos is existing gaming revenue, according to the study issued by the Maryland Public Policy Institute, a nonpartisan think tank based in Rockville.
Supporters of Question 7, the gambling expansion referendum, on the other hand, have said an expansion would generate $199 million annually for Maryland schools.
