For the past year, one political power player after another has tried to negotiate with Donald Trump, and gotten bitten for the effort. Yet, like lemmings, each successive figure stepped up to meet the same fate, convinced despite all available evidence that gravity would give them a better deal. These movers and shakers seemed to think they could control Trump, and attempted to reach a bargain with the man who wrote The Art of the Deal. It did not end well for any of them. Ted Cruz bent over backward to avoid criticizing Trump, in hopes that the billionaire's campaign...