Cruz slightly insulted Trump today when he said he’s getting on this ‘gigantic plane with Trump’s name on it’ to campaign, was that plane envy talking?
Wow. I didn't take it that way at all.
Look at the context again. He was referring to the size of the Trump writing on the side of the plane. He was insulting the reporter for asking a silly question by pointing out the size of the big Trump billboard that he was traveling in.