LITTLE ROCK, ARK. (AP) — A Republican candidate running for Arkansas State Senate said he made “mistakes" as a teenager after repeatedly denying his dismissal from a Mississippi high school for wearing a racist Ku Klux Klan costume for Halloween. Charles Edward Beckham III initially denied reports from the Arkansas Democrat-Gazette and Arkansas Times that he was suspended and dismissed from Mississippi School for Mathematics and Science for wearing a racist Ku Klux Klan costume at a school-sponsored Halloween event. The Arkansas Times first reported Beckham's dismissal on Tuesday. Beckham also told the Arkansas Democrat-Gazette in a email Tuesday that...