A law that bars out-of-state retailers from selling liquor directly to Illinois consumers does not run afoul of the U.S. Constitution, a federal judge ruled.In a written opinion last week, U.S. District Judge Samuel Der-Yeghiayan rejected the argument that the Illinois Liquor Control Act of 1934 gives in-state retailers an unfair advantage over their out-of-state competitors in violation of the commerce clause.Der-Yeghiayan conceded the law allows only retailers based in the state to sell alcohol directly to Illinois …