Two future U. S. presidents signed me. Two didn't because they were abroad. Despite my importance, modern viewers seem to think I have a glaring spelling error. What document am I?

The United States Declaration of Independence was signed by two future presidents. These were Thomas Jefferson, the primary author of the document and the third president, and John Adams, the second president.

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wisdom

explanation:

the fact that that the teachings on the cosmic order comes from, or through, the heart center

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.