They established the Federal Reserve to regulate the nation's money supply and to place controls on the banking activities.<span />
After WWI and during the Great Depression the US tried to be an Isolationist nation. They put out tariffs so people would buy US (forgetting that the rest of the world was still devastated by WWI (economies included)).
Yes. George Washington didn’t want to be involved with them, as he thought t would cause more caos. Hope this helps!