Thank you for posting the tweet. I can definitely see how it could be interpreted as Carson dropping out after Iowa. Not participating in the next 2 states is tantamount to ending a run...
However, to be fair, it was NOT an explicit statement, so the Iowa campaign team should apologize.
I’m disappointed with Trump, I think here on FR, somewhat irresponsible statements, few in number, are made but with minimal profanity, what if he called a potential female opponent some awful names, the “b” word, we might say, “oh, they had that coming” but that’s not going to play well nationally.