  In this short paper, we present constraints on the Galileon inflationary
model from the CMB bispectrum. We employ a principal-component analysis of the
independent degrees of freedom constrained by data and apply this to the WMAP
9-year data to constrain the free parameters of the model. A simple Bayesian
comparison establishes that support for the Galileon model from bispectrum data
is at best weak.
