Emma Bonino supported the NATO intervention in Kosovo in the spring of 1999. From 1999 to 2004, the Lista Bonino was non-affiliated, as it was founded with a claim to not adhere to the traditional centre-left versus centre-right politics, rather remaining in the middle to maximize any potential bargaining power. In the case "Emma Bonino and Others v Parliament and Council (Case T-40/04)", the Liste Emma Bonino contested before the Court of Justice of the European Union that its exclusion from Community funding due to not qualifying as a party on the 'European level' was discriminatory. The court dismissed this argument as inadmissible, establishing that measures do not necessarily need to legally affect an applicant in order for the case to directly affect them. Since 2004, it is part of the ALDE group.