As GM’s primary lender in bankruptcy, Treasury played a significant role in helping GM resolve the Delphi bankruptcy. Treasury’s effort to restructure GM included helping GM find the best resolution of the Delphi bankruptcy from GM’s perspective. This effort was guided by the following principles: preserving GM’s supply chain, resolving Delphi’s bankruptcy as quickly as possible, and doing so with the least possible amount of investment by GM. However, court filings and statements from GM and Treasury officials suggest that Treasury deferred to GM’s business judgment on decisions about the Delphi pension plans—that is, their sponsorship and the decision to honor existing top-up agreements. According to public records and Treasury officials, Treasury agreed with GM’s assessment that the company could not afford the potential costs of taking over sponsorship of the Delphi hourly plan, but that the company had solid commercial reasons to honor previously negotiated top-up agreements with some unions. Nevertheless, Treasury officials said that Treasury did not explicitly approve or disapprove of GM's agreement to honor previously negotiated top-up agreements. PBGC officials stated that PBGC decided to terminate the plans independently of Treasury input.