What he should have done is dropped out before Iowa, if he wasn't going to go on.
Trump took Carson out months ago by implying he is mentally unstable, tried to imply pedophilia about Carson, called him a quack bad surgeon, a liar, and I think he called him lazy too.
Did he say anything about Trump?
Trump goes home to New York City a lot and nobody ever claims he’s dropping out. You are doing a very poor job rationalizing the nasty dirty tricks of Ted Cruz.