Drezner puts the country in perspective: 

 If one measures power strictly according to GDP at market exchange rates, then the United States is roughly 250 percent more powerful than China. If one uses a combination of metrics as does, for example, the U.S. National Intelligence Council’s 2025 project then China possesses a little less than half of America’s relative power. Even on the financial side, the U.S. still reigns, and, hype notwithstanding, the dollar is not going anywhere as the world’s reserve currency. The renminbi could be an alternative in the far future but after the 2008 financial crisis, China is loath to open up its capital markets. Even by the less tangible metrics of soft power, the United States still outperforms China handily in new public opinion surveys from the Pacific Rim by the Chicago Council on Global Affairs.

Right now, the United States is vastly more powerful than the People's Republic of China. Anyone telling you otherwise is selling you something.

Yes, right now. And we can stay that way with fiscal reform. But not without it. And soon.

(Hat tip: Pejman)