  The CDF experiment at the Tevatron $p\bar{p}$ collider established that
extensive and detailed exploration of the $b$--quark dynamics is possible in
hadron collisions, with results competitive and supplementary to those from
$e^+e^-$ colliders. This provides a rich, and highly rewarding program that has
currently reached full maturity. In the following I report some recent results
on hadronic decays: the evidence for the charmless annihilation decay mode
$B^0_s \to pi^+\pi^-$, and the first reconstruction in hadron collisions of the
suppressed decays $B^- \to D(\to K^+\pi^-)K^-$ and $B^- \to D(\to
K^+\pi^-)\pi^-$.
