It’s not complicated. Simply watch both speeches and honestly assess who did the better job. On the other hand, I suppose it’s easier to just keep repeating the same lame Cruz talking points. I have never changed my thinking about a candidate as I have with Cruz. I have gone from an ardent supporter to actually disliking the man ...all in about one month.
I felt almost the same about Trump. While never a big supporter, 3 and 2 debates ago made him repulsive to me. He behaved the last debate, but I am still wary of him.