Measurement of the anomalous like-sign dimuon charge asymmetry with 9 fb${}^{-1}$ of $p\bar{p}$ collisions

The D\O\ Collaboration has performed a new measurement of the anomalous like-sign dimuon charge asymmetry with 9 fb${}^{-1}$ of $p\bar{p}$ collisions. In these proceedings I present a short overview of the measurement that complements the slides presented at the DPF-2011 Conference.