https://www.constituteproject.org/search?lang=en
http://confinder.richmond.edu/
There's something special about the American Constitution, although I'm not sure what it is. Recently I have been cogitating on the "truthfulness" of Constitutions in general. For example, the Ukrainian constitution clearly states that Crimea is in the nation of Ukraine and nothing can stop that. Russia's constitution doesn't have any articles pertaining to Crimea but it does have military and governmental control over the area. To simply dismiss Constitutional truth out-of-hand leads to major legal problems, especially since most supreme courts are solely concerned with the question of "Constitutional or not".
The Premable includes the same type of truth, what I will call a "should" truth, as opposed to an "is" truth.
We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.
If the Preamble was an "is" truth, also known as a fact, then the union would be more than perfect, and justice for all and all that. Modern thought seems to indicate that alternate facts are less than facts. In fact, they are greater than facts, as evidenced by our striving towards them.
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I read something today which makes a very different claim. The US Constitution is only 23% true and 77% bullshit. However, they used an entirely different standard.
http://harpers.org/archive/2017/03/good-plain-english/?single=1