It doesn't make a difference who is in power. The transactions are just a movement of power from one individual or group to another, and the power is just the ability to get others to do what you wish. The transactions still exist, and you have to look for ways to take advantage of them. The debt of countries does not matter in this case, as you can look for way to take advantage of transactions anywhere in the world. Even if the entire world's economy partially collapsed, that is just an opportunity to get investments under their normal value. Look for any transaction, in or out of the market, that you can gain something that is currently undervalued, but is unlikely to stay undervalued long-term.