We shall see. Cruz should have gotten at least 35% in IA, which is tantamount to his own church. Instead, he pretty much scammed his way into a three-way with Trump, Cruz and Rubio. Trump has an RCP spread of 16% i South Carolina - which, again, is not inside-the-door voter changing IA.
Cruz withstood all the garbage Trump throw at him and still won the caucuses. Whether you like it or not it was a big win for Cruz.