DickMN, an amendment to the US Constitution CAN and has been amended ("changed") many times!!! The very term "amendment" means to amend, or "change" the Constitution. The most famous amendment ("change") to the US Constitution related to Prohibition of Alcohol. It was voted as approved rapidly, and almost as rapidly, it was very soon...ammended...(changed)....REPEALED! <A HREF="http://www.druglibrary.org/schaffer/History/rnp/RNP9.html" target="_new">http://www.druglibrary.org/schaffer/History/rnp/RNP9.html</A> Hope this helps.