The top-priced law firm retained by the Republican Party and John Boehner to defend the religious right’s anti-gay “Defense of Marriage Act” is bailing out.

King and Spalding Chairman Robert D. Hays, Jr., whose partner Paul Clement was to lead the defense, said in a statement through a spokesman, Les Zuke:

Today the firm filed a motion to withdraw from its engagement to represent the Bipartisan Legal Advisory Group of the House of Representatives on the constitutional issues regarding Section III of the 1996 Defense of Marriage Act. Last week we worked diligently through the process required for withdrawal.

In reviewing this assignment further, I determined that the process used for vetting this engagement was inadequate. Ultimately I am responsible for any mistakes that occurred and apologize for the challenges this may have created.