I fear McCarthy might be right about Cruz. Cruz is my first choice, but the path does seem to be getting narrower for him. Cruz is getting squeezed on both flanks. Trump is doing well among very conservative and evangelical voters, while the GOP-e is making a very pointed statement to Cruz by endorsing Rubio at every opportunity.
I also tend to think Ben Carson is sticking in the race to siphon off a few more percentage points from Cruz to weaken his efforts against Trump. Just a gut feeling on that point, though.
I agree. Carson is helping the man who said he was sick, and as incurable as a child molester.