Henry Paulson's speech Wednesday made it pretty clear: The Treasury secretary has seized control of the financial system. He is absolutely the most powerful person in the country. Maybe the world," says Wall Street accounting expert Robert Willens. The most telling line in his speech came when Paulson was explaining why he did a 180-degree turn with money approved by Congress under the $700 billion bailout bill. Instead of using it to buy troubled mortgage assets from banks, as clearly envisioned, he scrapped that idea and used it to make equity investments in banks. "In consultation with the Federal Reserve, I determined that the most timely, effective step to improve credit market conditions was to strengthen bank balance sheets quickly through direct purchases of equity in banks," he said. If Paulson bothered consulting with President Bush, he didn't mention it. In fact, he didn't even mention the president until the tail end of his speech, when he talked about the global summit Bush is hosting this weekend. I can understand why Paulson wants to distance himself from an unpopular president, especially one who has little facility for complex financial matters. But Bush is [the] president and even President-elect Barack Obama knows there can be only one president at a time. And his last name is not Paulson. In September, when Paulson asked for a $700 billion blank check from Congress to fix the financial markets, he got a lot of blowback. By the time Congress was done with his proposal, it had grown from 2 1/2 pages to more than 450. Yet it now appears that Paulson got the blank check he wanted.