Ohio Representative Dennis Kucinich filed today to be placed on the Democratic primary ballot in Arkansas. Kucinich is the only remaining challenger to Massachusetts Senator John Kerry, who has locked up enough delegates to win the Democratic nomination. So far perennial presidential candidate Lyndon LaRouche is the only other person who`s filed to run for president in the Arkansas Democratic primary. The Arkansas primary is May 18th and the deadline to file is one week from today. Kucinich told supporters last weekend that he intends to campaign through the remaining primaries and caucuses in early June. The message to supporters came a day after his second-place finish to Kerry in Alaska`s presidential caucuses.