Groups spent $35 per voter on Maryland gaming ads

After months of voters being bombarded by campaign ads, a WTOP-Radio review of spending on Question 7 in Maryland found that supporters and opponents of the now-approved expanded gambling measure spent more than $35 per vote cast on the issue.

According to unofficial election results, 2,479,262 Marylanders cast a vote on the gambling question. It was the most expensive Maryland state campaign ever. By comparison, in Virginia's Senate race, federal election disclosure data compiled by ProPublica…