"refudiate" isn't a word (though it appears to be a Palin-ism -- http://www.urbandictionary.com/define.php?term=Refudiate http://www.urbandictionary.com/define.

"refudiate" isn't a word (though it appears to be a Palin-ism -- http://www.urbandictionary.com/define.php?term=Refudiate http://www.urbandictionary.com/define.php?term=Refudiate). Perhaps you meant "repudiate?"