During the 1930s, there were massive interventions, starting with President Herbert Hoover and later with President Franklin D. Roosevelt. Their actions turned what would have been a sharp three- or four-year economic downturn into a 10-year affair. In 1930, when Hoover began to "fix" the economy, unemployment was 6 percent. FDR did even more to "fix" the economy. As a result, unemployment remained in double digits throughout the decade and reached 20 percent in 1939. President Roosevelt blamed the high unemployment on his predecessor. Presidential blaming of predecessors is a practice that continues to this day.
You say, "Williams, the White House and Congress should do something." The track record of doing nothing is pretty good compared with doing something. None of our economic downturns in the century and a half prior to 1930 lasted as long as the Great Depression.
It would be political suicide for a politician to follow my counsel -- and for good reason. Americans have been miseducated into thinking that Roosevelt's New Deal saved our economy. That miseducation extends to most academics, including economists, at our universities, who are arrogant enough to believe that it's possible for a few people in Washington to have the information and knowledge necessary to manage the economic lives of 313 million people. Good economists recognize our limitations, making us not nice people to be around.