Updated at 12:44 p.m.: Revised to include statements from White House officials.

Both Presidents Bush have revealed that fellow Republican Donald Trump didn't get their votes to be their successor in the White House.

In a new book, George H.W. Bush says he doesn't like Trump, whom he referred to as a blowhard, Newsweek reports.

The 41st president says he voted for Democrat Hillary Clinton, while his son, the 43rd president, told The Last Republicans author Mark K. Updegrove that he voted for "none of the above."

Trump's press secretary, Sarah Huckabee Sanders, responded Saturday by attacking the Bushes' legacy.

"The American people voted to elect an outsider who is capable of implementing real, positive, and needed change — instead of a lifelong politician beholden to special interests," she said in a written statement. "If they were interested in continuing decades of costly mistakes, another establishment politician more concerned with putting politics over people would have won."

NEW: WH responds to Bush41 calling POTUS a "blowhard". Calls Iraq "greatest foreign policy mistakes in American history". via/ @NoahGrayCNN pic.twitter.com/XQ2f1JK81C — Ryan Nobles (@ryanobles) November 4, 2017

The younger Bush told Updegrove during the 2016 presidential election, "I'm worried that I will be the last Republican president," The New York Times reported.

"I think he was concerned that Hillary Clinton would win," the author told The Times. "But if you look at his values and those shared by his father and Ronald Reagan, they are very much in contrast to the values of the Republican Party today, in particular the platform that Donald Trump ran on, which is essentially protectionism and a certain xenophobia."

In another statement Saturday, issued to CNN, Trump's team challenged the idea that Trump could bring about the end of the GOP.

"If one Presidential candidate can disassemble a political party, it speaks volumes about how strong a legacy its past two presidents really had," the White House statement said.

Calling the Iraq War led by George W. Bush "one of the greatest foreign policy mistakes in American history," the White House said: "President Trump remains focused on keeping his promises to the American people by bringing back jobs, promoting an America First policy and standing up for the forgotten men and women of our great country."

George W. Bush admitted that his brother Jeb Bush "didn't fit with the mood" when he faced off against Trump in the Republican primaries. But he was surprised when Trump won his party's nomination, and he didn't expect him to win the presidency.

"If you look at the Bush family, it makes perfect sense. Donald Trump is everything that the Bush family is not," Updegrove told CNN. "George Bush grew up thinking about the greater good. Donald Trump is manifestly narcissistic. It's part of his brand, and that brand is the antithesis of the Bush brand."

George W. Bush told Updegrove: "You can either exploit the anger, incite it, or you can come up with ideas to deal with it."

"If you're angry with the powers that be, you're angry with the so-called establishment," he said. "And there's nothing more established than having a father and brother that have been president."

In May 2016, the elder Bush was direct in his assessment of Trump: "I don't like him."

"I don't know much about him, but I know he's a blowhard. And I'm not too excited about him being a leader," The Times quoted him as saying.

Low energy Jeb Bush just endorsed a man he truly hates, Lyin’ Ted Cruz. Honestly, I can’t blame Jeb in that I drove him into oblivion! — Donald J. Trump (@realDonaldTrump) March 23, 2016

"When Donald Trump said, 'I am my own adviser,' Bush thought — and this is a quote — 'Wow, this guy doesn't know what it means to be president,' " Updegrove told CNN.

George H.W. Bush told the author he voted for Hillary Clinton, but the younger Bush didn't follow his father's lead.

He told Updegrove, whose book will go on sale Nov. 14, that he had concerns about Clinton's use of a prviate email server. He opted not to choose a candidate and said before the election that it was up to the nation to decide "to what extent should we be insisting upon integrity and solid character."

Washington Bureau Chief Todd Gillman contributed to this report.