How does paragraph 14 contribute to the development of ideas in the text? (FROM THE COMMONLIT ROARING TWENTIES)

Herbert Hoover was elected the country’s 31st president in 1929. He was a successful mining engineer from Iowa before lending his services to the government. As President Coolidge’s secretary of commerce, Hoover recognized already in 1925 that the economy was overheating as Americans began “buying on margin” and speculating on the soaring stock market. He urged Coolidge to tighten the credit and take other steps to cool the market, but the president and his treasury secretary blocked any attempt at government intrusion into private business. Despite this setback, Hoover went on to handily win the presidential race the following year.