It is clear that Trump had this scandal in his pocket ready to fire at Ted Cruz for some time.
Why did he not deploy it earlier?
He deployed it now because Ted Cruz went after Trump’s wife.
Trumps biggest political advantage is that he cares about things that are more important than political advantage.
With every other politician on the face of earth you ask the question “Is it to his advantage to harm me?”
With Trump, the man, you have to ask the question “Will this piss off the Trump?”
Don’t piss off the Trump. He rewards those who do right to him, and harms those who do wrong to him. He is the man.