I got that from this line, the second paragraph of the original post:
Cruz’s campaign manager, Jeff Roe, warned the Trump campaign ahead of the New Hampshire primary that support for him was dropping in their internal polls, giving Trump a chance to recalibrate his strategy in the key primary state. He went on to win New Hampshire, Nevada and South Carolina, essentially locking up the Republican nomination.
It looks to me like one of Cruz' pollsters leaked to Trump and possibly saved America. [Assuming, of course, that this report is correct, and that I am correctly reading "support for 'him'" as "support for Trump". My experience has been that this sort of thing happens often in politics, so I tend to believe the report.]
You’re reading a whole lot of stuff into all.
Fact is Trumps message were totally resonating from day one, 6/16/2015, and he certainly didn’t need any of these corrupt pollsters.