Jim Cramer on why the Federal Reserve matters to investors

If you spend much time watching this network, you've heard endless chatter about the Federal Reserve, the business cycle, tariffs and trade, and of course, all the ways our trading partners try to get over on us by breaking the rules of the Great Arbor, the World Trade Organization, or at least breaking them in spirit. But for all the relentless focus on the Fed or trade policy or the inherent boom and bust nature of the economy, we don't always do a great job of putting this stuff into context and explaini ...