In an unprecedented defeat for the Federal Reserve, an amendment to audit the multi-trillion dollar institution was approved by the House Finance Committee with an overwhelming and bipartisan 43-26 vote on Thursday afternoon despite harried last-minute lobbying from top Fed officials and the surprise opposition of Chairman Barney Frank (D-Mass.), who had previously been a supporter.

The measure, cosponsored by Reps. Ron Paul (R-Texas) and Alan Grayson (D-Fla.), authorizes the Government Accountability Office to conduct a wide-ranging audit of the Fed’s opaque deals with foreign central banks and major U.S. financial institutions. The Fed has never had a real audit in its history and little is known of what it does with the trillions of dollars at its disposal.

The amendment expressly blocks Congress from interfering with the independence of monetary policy decision-making, but opponents of the measure said that the political pressure would inevitably follow.

A desperate, last-minute attempt to thwart the move came in the form of an amendment championed by Rep. Mel Watt (D-N.C.) and described by its supporters as more reasonable. On Tuesday, however, the Huffington Post reported that, on a close reading, his amendment would in fact decrease transparency at the Fed by adding additional restrictions.

Backers of the Watt amendment pressed their case on Wednesday by sending a letter from a “political cross section of prominent economists” backing a measure like Watt’s. HuffPost reported, however, that those economists might well have be prominent, but they certainly aren’t a “political cross section.” Seven of the eight economists in question have extensive connections to the Fed — and half of them are currently on the Fed payroll. Those affiliations were not noted in the letter.

The playbook in Washington often goes like this: When a measure that threatens the establishment builds enough momentum that it must be dealt with, it is labeled as “unserious.” The Washington Post editorial board, true to the script, called Paul’s measure “an unserious answer to a serious question.”

And it particularly rankles the center that a pair of “wingnuts” are behind a successful effort to challenge the prevailing order.

Step Two is for a “serious” compromise to be offered. In this case, it was Watt’s amendment. But by the time the vote was called Thursday afternoon, committee members had seen through his measure, recognizing that it was not a compromise effort to bring real transparency to the Fed but an attempt to further shut the the doors.

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