From Lucas v. Duncan, 574 F.3d 772 (D.C. Cir. 2009):
Although both Karl and the Department of Education agree that this court should review the magistrate judge's order for abuse of discretion with particular care, ... they disagree as to the substantive standard that the judge should himself have applied. Karl notes that Rule 11(c)(2), ...
From Lucas v. Duncan, 574 F.3d 772 (D.C. Cir. 2009):
Although both Karl and the Department of Education agree that this court should review the magistrate judge’s order for abuse of discretion with particular care, … they disagree as to…