"See 13C C. Wright, A. Miller & E. Cooper, Federal Practice and Procedure §3533.3, p. 2 (3d ed. 2008) (Wright & Miller) (“[A] case is not moot so long as a claim for monetary relief survives”). Ultimate recovery on that demand may be uncertain or even unlikely for any number of reasons, in this case as in others. But that is of no moment. If there is any chance of money changing hands, Mission’s suit remains live. See Chafin, 568 U. S., at 172."