If Trump is excluded from the debates, that should mean at least a 5 point bump in his polling.
That would be just delicious...have the debates descend into total chaos. What does anyone expect anyway? A bunch of liars, why should it matter what they say?
They may not want to debate with Trump on live TV, but I think they risk serious damage to their campaigns if they don't. Besides, FOX would lose many, many viewers if the leader in the polls isn't present because the other candidates fear him.