President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE responded Thursday to criticism from former first lady Barbara Bush, who died last year, telling a reporter he expected the criticism based on his treatment of former Florida Gov. Jeb Bush (R), one of her six children, in the 2016 Republican presidential primary.

In an interview with The Washington Times, Trump responded directly to Bush's characterization of him in “The Matriarch: Barbara Bush and the Making of a Dynasty,” a biography of the wife of former President George H.W. Bush. Bush referred to Trump as a "symbol of greed" in an interview with the book's author, Susan Page.

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“I have heard that she was nasty to me, but she should be. Look what I did to her sons,” Trump responded Thursday, according to the Times.

Jeb Bush dropped out of the Republican presidential primary following an unimpressive showing in South Carolina.

Trump referenced how he had mocked Bush's decision to campaign alongside his brother, former President George W. Bush, in the state in the hopes of defeating Trump.

“Look, she’s the mother of somebody that I competed against. Most people thought he was going to win and he was quickly out. I hit him very hard in South Carolina,” the president said.

“Remember? He was supposed to win South Carolina and I won it in a landslide. I hit him so hard," Trump reportedly added.

“That’s when his brother came to make the first speech for him,” Trump continued. “And I said, ‘What took you so long?’”

In the same book, Page wrote that Barbara Bush reportedly blamed Trump for the worsening of her congestive heart failure, which Page says grew more severe around the time Trump secured the GOP nomination for president in June of 2016.

"Barbara Bush blamed Donald Trump for her heart attack," Page wrote.

"It wasn't technically a heart attack, though she called it that,” the book continues. “It was a crisis in her long battle with congestive heart failure and chronic pulmonary disease that hit her like a sledgehammer one day in June 2016" when Trump secured the nomination.