What is the US dollar backed by?

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Tags

1. #since
2. #dollars
3. #notes
4. #saying
5. #federal
6. #currency
7. #faith
8. #where
9. #utilize
10. #backed
11. #government
12. #silver
13. #credit
14. #first
15. #reserve
16. #money
17. #citizens
18. #backing