Billionaire businessman Donald Trump Donald John TrumpBarr criticizes DOJ in speech declaring all agency power 'is invested in the attorney general' Military leaders asked about using heat ray on protesters outside White House: report Powell warns failure to reach COVID-19 deal could 'scar and damage' economy MORE offered kids helicopter rides in a show of wealth as he bragged Saturday that he is willing to spend $1 billion on his presidential campaign.

"I'm turning down so much money," Trump said at a press conference kicking off his weekend trip to Iowa to visit the State Fair, with his black helicopter emblazoned with "Trump" and children standing in the background.

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Trump touted turning down a $5 million donation offer this week before saying he would spend $1 billion on his 2016 bid "if I had to."

"Nobody else would do the job that I will do," Trump said, mentioning jobs, the military, care for veterans and the "catastrophe" of ObamaCare, which he said he would get rid of.

Trump whirled into the Iowa State Fair this weekend on his private helicopter, descending on a scene scouted out by many other presidential hopefuls from both parties.

Trump flew to Iowa on Saturday morning on his 757 after a rally in New Hampshire the previous night, before taking his helicopter from the airport toward the fair.