'That is failure': Trump's niece goes off as US pays for uncle's 'catastrophic mistake'

President Donald Trump's niece sounded off against her uncle's war in Iran in a new Substack essay on Monday.

Mary Trump, a psychologist and author, argued that Americans are just starting to pay the "cost of chaos" of her uncle's war. She noted that the economic fallout from the war is "staggering," as the Federal Reserve Bank of Dallas predicts a 2.9% drop in global GDP because of the war.

"Donald entered this conflict despite explicit warnings from experts that it would be a catastrophic mistake," Trump wrote. "The consequences were foreseeable to anyone paying attention. What is now being proposed as a way out of the war amounts to a reset to the status quo that existed before, except under far worse conditions. That is not strategy. That is failure."

"And the economic consequences are already here," she added. "According to the Council on Foreign Relations, the United States economy was already shaky before the Iran war. Now it is in real trouble. Growth is slowing. Prices are rising across the board. The ripple effects are being felt across multiple continents, including here at home."

She also noted that her uncle's hypocrisy over the war is now impossible to ignore.

"During the 2024 campaign, Donald made the price of eggs a centerpiece of his messaging," she wrote. "He blamed rising grocery costs on his predecessor, despite the fact that those price increases were largely driven by a widespread outbreak of avian flu and the necessary culling of poultry. That did not stop him. He attacked daily. He simplified a complex issue into a political weapon. And he promised relief."