The problem is not the midterms. The problem is that the world has been thoroughly spooked by the West cutting off Russia from trade and payment systems. Countries like India, China and Saudi Arabia are already moving to other currencies for international trade. When that trickle becomes a flood, then the dollar will crash - because there's nothing holding it up apart from its reserve status. You already have $5 per gallon gas. Then it will be $10 and you'll have to find ways to buy food without getting in a car and driving the few miles to the grocery store. It's going to be nasty.