My prediction is that this move will turn out good for Trump, and bad for Fox and the lesser candidates.
Trump also pointed out in his press conference tonight how Cruz had mentioned how he "forgot" he was a Canadian citizen, and how Cruz had claimed he "forgot" to include information about the substantial financial assistance he had received from Goldman-Sachs and Citigroup, on the required government forms. He does appear to be a bit "forgetful" at times.
Trump is being quite lenient on Cruz by saying Cruz simply “forgot” about his Canadian citizenship and his loans. Trump could’ve instead said Cruz is a lying politician, but he didn’t.
I still suspect Trump and Cruz may be playing us... that they’re in cahoots.
I say this because Trump and Cruz aren’t attacking each other all that hard.