Lucas never really dissed the Pres in this article.
http://www.dailymail.co.uk/pages/live/articles/showbiz/showbiznews.html?in_article_id=348759&in_page_id=1773
Lucas said: "I wrote these films during the Vietnam War and the Nixon era and the question was: how does a democracy turn itself over to a dictator.
"It is a recurring theme in history and I hope it doesn't come true in our country.
"When I wrote Star Wars, Iraq didn't exist. We were just funding Saddam Hussein and giving him weapons of mass destruction, we weren't worried about him.
"I was writing it at the time of the Vietnam War but the parallels between Vietnam and what we are doing in Iraq now are unbelievable."