Friday was the official observance of Constitution Day. The traditional celebration is today, Sept. 17, which is the 229th anniversary of the official adoption of the U.S. Constitution by the Constitutional Convention in Philadelphia.

The Constitution that the Founding Fathers drafted was not perfect. They recognized this, which is why they created Article Five, which lays out the process for amending it. That process has been invoked many times, but the basic tripartite structure of government remains the same.