We report Tevatron results on the B-_c meson in Run II.  The
B-_c meson has been observed in semileptonic decays, B-_c --> J/psi l- nu
X, by both the CDF and D0 collaborations at a significance greater than 5
sigma.  For D0, the candidate B-_c --> J/psi mu- X events are used to
extract measurements of the mass and lifetime of the B-_c meson.  For CDF,
the B-_c --> J/psi l- nu X observations have resulted in measurements of
the relative production times branching ratio with respect to B- --> J/psi
K- decays and a precise determination of the lifetime of the B-_c: c
tau(B-_c) = 0.474+0.073_-0.066 +/- 0.033 ps.  Also for CDF, an observation
of B-_c --> J/psi pi+- decays at a significance exceeding 6 sigma results in
a precise determination of the mass of the B-_c: M(B-_c) = 6275.2 +/- 4.3
+/- 2.3 MeV/c2.