Yes it's happened many times before. The last was in (I believe) 1997 when Clinton was president. It's not near as big a deal as they make it sound it will be. The military will still be deployed, the post office will be open as usual, and many people will still be getting paid. It's a scare tactic. And a great political bargaining chip. Both sides will be able to blame the other side for shutting down the government. The budget is TRILLIONS of dollars. If they can't cut out a measly 100 billion from trillions, they deserve to shut down, imo.