Photo by Eric Denman D.C. has always had a reputation as a drinking town. Maybe it’s because of all the lobbyists, lawyers, and politicians, but in the heyday of the cocktail, before Prohibition, residents of the District supposedly out-drank their counterparts in other areas of the country several times over. We even have our own cocktail that was named after a lobbyist. These days, many of the top restaurants in the city now have…