Former President George W. Bush praised Sen. John McCain John Sidney McCainCindy McCain endorses Biden: He's only candidate 'who stands up for our values' Biden says Cindy McCain will endorse him Biden's six best bets in 2016 Trump states MORE's (R-Ariz.) disdain for authoritarian leaders on Saturday during a funeral service for the late senator at the Washington National Cathedral.

Bush told a crowd of various public figures and lawmakers that McCain, who died last week at the age of 81 from brain cancer, "detested the abuse of power" both at home and abroad.

ADVERTISEMENT

"Above all, John detested the abuse of power. He could not abide bigots and swaggering despots," Bush said before recounting a story from McCain's days at the U.S. Naval Academy in Annapolis, Md., where he will be buried Sunday.

"One friend from his Naval Academy days recalled how John, while a lowly plebe, reacted to seeing an upperclassman verbally abuse a steward. Against all tradition, he told the jerk to pick on someone his own size. It was a familiar refrain during his six decades of service," Bush said.

Former Pres. George W. Bush: "Above all, John detested the abuse of power. He could not abide bigots and swaggering despots." https://t.co/GjT7NkiFQF pic.twitter.com/22I3Bl3OUo — ABC News Politics (@ABCPolitics) September 1, 2018

Bush continued in his eulogy, remembering McCain's honesty, even toward leaders in the White House, and his penchant for standing up for those without political power.

“There was something deep inside him that made him stand up for the little guy," Bush said. "He was honest no matter whom it offended. Presidents were not spared."

"He respected the dignity inherent in every life — a dignity that does not stop at borders and cannot be erased by dictators," the former president added.

Bush joined other top Republicans and Democrats, including former President Obama, on Saturday for McCain's memorial service alongside three former vice presidents.

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, who bitterly battled with McCain during the 2016 campaign and his first year in office, was not invited, though his daughter Ivanka Trump Ivana (Ivanka) Marie TrumpSpecial counsel investigating DeVos for potential Hatch Act violation: report Trump, Biden vie for Minnesota Trump luxury properties have charged US government .1M since inauguration: report MORE and son-in-law Jared Kushner Jared Corey KushnerAbraham Accords: New hope for peace in Middle East Tenants in Kushner building file lawsuit alleging dangerous living conditions Trump hosts Israel, UAE, Bahrain for historic signing MORE attended the service.