  From a gauge $SU(2,2|2)$ model with broken supersymmetry, we construct an
action for $SU(2)\times U(1)$ Yang-Mills theory coupled to gravity and matter.
The connection components for AdS boosts and special conformal translations are
auxiliary fields and their fixing reduces the theory to two distintive sectors:
a vector-like gauge theory with general relativity and a chiral gauge theory
where gravity drops out. We discuss some of the main classical features of the
model such as the predicted tree level gauge couplings, cosmological constant
value, mass-like terms and the Einstein equations.
