Who said that?!? Citation, please.
http://news.google.com/news?source=ig&hl=en&rlz=1G1GGLQ_ENUS277&q=expected+voter+turnout+over+2004%3F&um=1&ie=UTF-8&sa=X&oi=news_result&resnum=1&ct=title
The first article from WI talks of 50% more turnout expected, but fell short. The other articles are more closely associated with what happened.