Idaho's only black lawmaker says receiving a direct mailing from a national Ku Klux Klan organization has bolstered her resolve to fight prejudice.  Boise Rep. Cherie Buckner-Webb says childhood memories of a cross burning on her lawn were rekindled last week when she opened a hand-addressed application to join the Knights of the Ku Klux Klan. The letter solicited a photo, $35 in annual dues and asked for a completed statement proclaiming: "I am a White Christian man or woman." Buckner-Webb believes she was specifically targeted by the group. She says she was more surprised than disturbed and will continue battling intolerance in Idaho. Buckner-Webb served one term in the Idaho House before announcing her candidacy for the District 19 Senate seat.