Cruz has been very good about saying a whole lot of different things on foreign policy, very loudly, so that everyone right now is hoping he stands with them (IE Conservative Israel First types think he is one of them, Neocons like him alright, and noninterventionists maintain some hope that he has their foreign policy)...
Of course, it is impossible to be all those things. Rand tried to do that in a much more nuanced way, but got thrashed by Judas Raimondo. Cruz will find in time people will catch up to his FP. Now, I think it might be too late for Rand, but hell, he might as well stick around and fight. He has Kentucky on lockdown, no reason not to. Santorum was nowhere this time last time too. Rand never had a shot going wire to wire anyway. Top dog is a bad place to be early. I will stand with Rand to the end, he is closer to my politics than even his father.