The ACLU is backing a protest of a dress code set in Louisville, Kentucky's, new nightclub district. The city is allowing the developer to enforce a dress code three nights a week along the block-long stretch of restaurants, bars and shops. It forbids sports jerseys, sleeveless shirts and backward baseball caps. The American Civil Liberties Union says the code is biased against blacks and poor people. The development manager says the dress code has nothing to do with race. A spokesman says the company is within its rights to enforce a minimum standard of dress on nights when the street is blocked off.