WASHINGTON - As Sen. Tom Harkin (news, bio, voting record) drafted letters to the Bush administration on behalf of an Iowa tribe, he had no shortage of ideas for wording: A tribal lobbyist who donated to the Democrat's campaign suggested language for him to use. Harkin wrote at least three letters in 2003 pressing the government to release federal money to help the Sac & Fox tribe in his state cope with the temporary closing of its casino due to a tribal dispute, according to Interior Department documents obtained by The Associated Press and records provided by Harkin's office. In...