Former CIA Director John BrennanJohn Owen BrennanThe Hill's Morning Report - Presented by Facebook - Trump tweets as tensions escalate across US Trump asserts his power over Republicans Comey, Rice, Clapper among GOP senator's targets for subpoenas amid Obama-era probe MORE lauded former President George H.W. Bush after his death, honoring his “public service, integrity, and determination.”

Political figures of all stripes have memorialized Bush, 94, after the 41st president's death was announced late Friday.

“George H.W. Bush led a life of exemplary public service, integrity, and determination—in WWII, in Congress, as UN Ambassador, Envoy to China, CIA Director, and as Vice President & President,” Brennan wrote in his remembrance.

“A life very well lived; an American who made us all proud. May he rest in eternal peace,” he added.

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Brennan has served presidents from both parties, working in every administration since Bill ClintonWilliam (Bill) Jefferson ClintonTop Democratic pollster advised Biden campaign to pick Warren as VP How Obama just endorsed Trump Trump, Biden signal how ugly the campaign will be MORE’s, with the exception of President TrumpDonald John TrumpSessions accepts 'Fox News Sunday' invitation to debate, Tuberville declines Priest among those police cleared from St. John's Church patio for Trump visit Trump criticizes CNN on split-screen audio of Rose Garden address, protesters clashing with police MORE.

He served in the CIA and directed the National Counterterrorism Center for Bush’s son, former President George W. Bush. He was later homeland security adviser and CIA director under former President Obama.

George H.W. Bush, like Brennan, ran the CIA, serving under President Gerald Ford when the position’s title was director of central intelligence.

Brennan, who describes himself on Twitter as a “nonpartisan American who is very concerned about our collective future,” has emerged as one of Trump’s fiercest critics.

Trump was among the political figures honoring Bush early Saturday morning after his death, saying he “inspired generations of his fellow Americans to public service.”