After the TV star and business mogul blew in via his private helicopter Saturday afternoon, he answered a battery of questions from the 100 or so reporters awaiting him at a softball field near the Iowa State Fair.

One question: Is he willing to spend a billion on his campaign, which would match the amounts President Obama and Republican Mitt Romney raised for their 2012 general election races?

Trump answered: “I would do that, yeah, if I had to.”

He added: “I make $400 million a year so what difference does it make?”