It fell to 10% in 1941 because of jobs created for the Lend-Lease program, declined further after the U.S. sent troops into battle, and by the war's end stood at 2%.

WSJ: Checks & Balances | Museum of American Finance | Of Debt and Taxes | By Mark Yost

It is so serious that the wall was never even approached when President Lincoln suspended the writ of habeas corpus, nor when President Roosevelt misled the public about the involvement in the Lend-Lease Program, nor when President Reagan misled the country and Congress about involvement with Iran-Contra.

CNN: House Judiciary Committee hearing,