The Tevatron collider at Fermilab provides a very rich environment for the
study of b-hadrons. Both the D0 and CDF experiments have collected a sample of
about 1 fb^{-1}. We report results on three topics: b-hadron lifetimes,
polarization amplitudes and the decay width difference in Bs to Jpsi Phi, and
Bs mixing.Comment: Flavor Physics & CP Violation Conference, Vancouver, 200
