https://www.john-f-kennedy.net/thefederalreserve.htm
On June 4, 1963, a virtually unknown Presidential decree, Executive Order 11110, was signed with the authority to basically strip the Bank of its power to loan money to the United States Federal Government at interest. With the stroke of a pen, President Kennedy declared that the privately owned Federal Reserve Bank would soon be out of business. The Christian Law Fellowship has exhaustively researched this matter through the Federal Register and Library of Congress. We can now safely conclude that this Executive Order has never been repealed, amended, or superceded by any subsequent Executive Order. In simple terms, it is still valid.
When President John Fitzgerald Kennedy - the author of Profiles in Courage -signed this Order, it returned to the federal government, specifically the Treasury Department, the Constitutional power to create and issue currency -money - without going through the privately owned Federal Reserve Bank. President Kennedy's Executive Order 11110 [the full text is displayed further below] gave the Treasury Department the explicit authority: "to issue silver certificates against any silver bullion, silver, or standard silver dollars in the Treasury." This means that for every ounce of silver in the U.S. Treasury's vault, the government could introduce new money into circulation based on the silver bullion physically held there. As a result, more than $4 billion in United States Notes were brought into circulation in $2 and $5 denominations. $10 and $20 United States Notes were never circulated but were being printed by the Treasury Department when Kennedy was assassinated. It appears obvious that President Kennedy knew the Federal Reserve Notes being used as the purported legal currency were contrary to the Constitution of the United States of America.
"United States Notes" were issued as an interest-free and debt-free currency backed by silver reserves in the U.S. Treasury. We compared a "Federal Reserve Note" issued from the private central bank of the United States (the Federal Reserve Bank a/k/a Federal Reserve System), with a "United States Note" from the U.S. Treasury issued by President Kennedy's Executive Order. They almost look alike, except one says "Federal Reserve Note" on the top while the other says "United States Note". Also, the Federal Reserve Note has a green seal and serial number while the United States Note has a red seal and serial number.
President Kennedy was assassinated on November 22, 1963 and the United States Notes he had issued were immediately taken out of circulation. Federal Reserve Notes continued to serve as the legal currency of the nation. According to the United States Secret Service, 99% of all U.S. paper "currency" circulating in 1999 are Federal Reserve Notes.