I hope both of them try. It will open them up for a sharp attack from Cruz on their hypocrisy.
Note that Carson’s “continuation” of his “campaign” means he’s happy to take money from his donors while flying on chartered jets, selling books while NOT campaigning and while paying for empty buses to tool around to make it look like he has a presence.... yeah, real honest of him.
Cruz is a cheat and he will be called on it. Despite his debating abilities which would put Joan of Arc to shame, he’ll do nothing more than blame subordinates as he always does. He’s already apologized for his cheating but has none absolutely nothing about it.