Bud tent owner says Obama visit cost him $25,000By DONOVAN SLACK | 8/14/12 12:13 PM EDT The Des Moines Register follows up on consternation at the beer tent at the Iowa State Fair when President Obama stopped by, forcing the tent to shut down for security reasons. Sen. Chuck Grassley (R-Iowa) tweeted on Monday, "How does PresO justify havin secret service shut down the bud tent @ the state fair nd the owner told me he loses 50,000 n 1 nite," and "Who does PresO think he is. He comes to StateFair the SecretService shut down all small business vendors...