Why is Trump upset? It’s because Cruz is schooling him in the art of the deal.

For years, Trump has been dogged by questions about his companies’ several bankruptcies, which are potential blemishes upon his business career.

In response, Trump has argued that there was nothing illegal, morally wrong or even shameful about restructuring debts and breaking contracts. On the contrary, these bankruptcies are a testament to his business acumen.

“I’ve used the laws of the country to my advantage,” he told Forbes.

“I have used the laws of this country just like the greatest people that you read about every day in business have used the laws of this country, the chapter laws, to do a great job for my company, for myself, for my employees, for my family, et cetera,” he echoed at the first Republican presidential debate.