First, Breitbart was only reporting what another poll (ABC) said.
Second, and more importantly, did this poll deal ONLY with people from states that haven’t yet had a primary? Because it seems to me that there aren’t a lot of states left that are in Cruz’ natural constituency (i.e. very conservative folks, including evangelicals). Many more are in the northeast, which seems more in Trump’s corner.
It stands to reason a lot of #nevertrump moderates will go for Cruz in this case. Trump could end up being God’s gift to Cruz, an unexpected reality where the moderates and liberal Republicans will vote for Cruz, after the actual moderate candidates back out.