When did U.S government become more and more involved in economic matter of public interest?

The U.S. government became more involved in economic matters of public interest during the Great Depression in the 1930s, when President Franklin D. Roosevelt implemented the New Deal to address widespread unemployment and economic instability. This trend continued through the mid-20th century, particularly during the post-World War II era, as the government took on roles in regulating industries, promoting social welfare, and ensuring economic stability. The involvement has evolved further in response to economic crises, such as the 2008 financial crisis and the COVID-19 pandemic, leading to increased government intervention in various sectors.