As discussed in this prohibition video.  This put another divide in the nation between “wets” and “drys.”  Making alcohol illegally only gave bootleggers and “gangsters” during this time period something else to get their hands on.  With a very high demand it became a very violent period.  This cost the US tons by supporting law enforcements efforts against alcohol.  Teddy Roosevelt used this to his advantage by campaigning against prohibition.   This period lasted until 1933 when the 18th amendment was finally repealed.