China has all the money and USA doesn't have any.

Just read The end of influence : what happens when other countries have the money by Stephen S. Cohen, J. Bradf.

It says that America will not be able to wield as much power and influence on the world stage because it no longer has the money. It's mostly in debt to China.

"We Americans spent more than we earned; we consumed more than we produced. We borrowed the money to buy the stuff from the people who produced it abroad and sold it to us. We paid them in dollars; they took the dollars and lent them back to us, so we could do it again. It worked well all around. They sold more, banked the money, and felt richer; we bought more and felt prosperous." p91.

Since a huge percentage of China's riches come from USA debt, China can't let the USA fail. They're in a sort of sick, co-dependent relationship.