FDIC holding a kill the deal Trump Card. The current situation as regards the FDIC not signing an extension of the GSA, yet not explicitly withdrawing either, puts them in the blocking position for any deal they don't like that may come out of mediation.
While not a party to mediation, this not signed but not withdrawn position gives them a Veto that could kill the deal.
This could possibly throw the case in a direction I am trying to decipher.