This is not going over well for Trump. Like Perot, the "Flake/Unstable " factor is creeping in.
Cruz has renewed his offer of a separate debate to "give him a chance to bring his message to the people of Iowa". A venue has already been reserved.
Questions will be taken from the audience. He can choose one of the following to moderate the debate: Mark Levin, Sean Hannity, or Rush Limbaugh -- all Trump friendly.
And, if Trump participates in the debate with Cruz, 1.5 million will be donated to the veterans that Trump claims to support so much.
It's lose, lose, lose for Trump. If he changes his mind and shows up at the main debate and reneges on his public announcement he just seems like a flake and just a side show.
If he balks at Cruz's offer, which meets all the ideal conditions Trump want: short (one hour), audience participation, friendly moderators, donation to the veterans; then he seems disingenuous and afraid of Cruz. And a snub to the people of Iowa by turning down both opportunities.
If he accepts Cruz's offer then Cruz is running the show and Trump moves to the beta position. Also, Cruz is a skilled debater and I'm not sure Trump will fair well going one on one with Cruz.
My analysis may be flawed but I can't see this going well for Trump. If it does then the man is bullet proof and his ascension to the presidency only gets stronger.