We present a search for new physics in events with two
high p(t) leptons of the same electric charge, using data with an
integrated luminosity of 6.1 fb-1. The observed data are consistent
with standard model predictions. We set 95% C.L. lower limits on the
mass of doubly-charged scalars decaying to like-sign dileptons, M_H+/-
+/- > 190 - 245 GeV/c2, depending on the decay mode and coupling.