In 1947 the 22nd amendment was voted in and ratified limiting the president to two terms. The implementation of a "New Deal" for the American worker by FDR, our 32 president, resulted in the largest economic expansion recorded in the United States. Workers getting fair pay, a good education and a secure retirement doesn't hurt the economy, it helps it.
Franklin Delano Roosevelt (D32) was only the president to preside more than 2 terms in office. He authored the New Deal and guided the US, if not the world, past the threats of WWII. He was a distant cousin of Theodore Roosevelt.