Thursday, the House Committee on Oversight and Government Reform questioned Ken Lewis about Bank of America’s purchase of Merrill Lynch and the subsequent injection of tens of billions of taxpayer funds into Bank of America.

While much of the hearing focused on Lewis’ leadership of Bank of America, the hearing also touched upon the more important questions of government regulators pressuring BoA to purchase Merrill even after BoA realized that Merrill’s losses were greater than expected.

One of the basic tenets of sound regulation, exercised in the public interest, is that regulators remain at “arm’s length” from the entities they regulate. As defined by Black’s Law Dictionary, “arm’s length” relates to “dealings between two parties who are not related or not on close terms and who are presumed to have roughly equal bargaining power; not involving a confidential relationship.”

If anything, it appears that BoA and the federal government were in a bear hug, rather than at arm’s length. As described in Lewis’ notes on one of his many conversations about the Merrill deal with Fed Chairman Ben Bernanke, Bernanke told Lewis, “We will not leave you in the lurch.” Given the funds subsequently injected into BoA, one can say that Chairman Bernanke is at least a man of his word.

One of the significant problems arising from extensive government ownership of private entities is that in regulating those entities, the government no longer has the ability to be a neutral, objective arbitrator. Whether it is BoA or GM, government officials will come under increasing pressure to see a positive return on the taxpayer’s investment. One should not be surprised if that pressure manifests itself by government officials favoring the very companies they have invested in.

While BoA has been saved, it appears that the rule of law has been “left in the lurch.”