To pile on a bit, Trump's move in Iowa (against Cruz) demonstrates his tendency toward reactionary judgment — again.
That might be a good quality for a bloviating businessman but it's not a quality you want in a President.
OTOH -
Ted Cruz is thoughtful, circumspect and at the same time decisive.
...and to pile on a bit more:
I don’t understand why people want to trade one godless narcissist for another one.
You got right to the heart of the judgment issue with Trump. In a dangerous world, we do not need an ego driven, reactionary in a pissing contest with other leaders. Everything that Trump does is governed by his ego. At one time I would have voted for him, but as time goes on, I have seen his behavior as more of a disqualifier.