O is following FDR's playbook to a tee. Read "FDR's Folly", by Jim Powell, and see what you think.
Our federal government has been ignoring the constitution at least as far back as Teddy Roosevelt. In fact, I think our last constitution-abiding president may have been Grover Cleveland. Harding and Coolidge might fit the mold as well. Since then, we've only had big government "conservatives" vs. bigger government "liberals". The closest to a fiscal conservative in the bunch was Reagan, but even he compromised too much with Tip O'Neal on spending.