Former CIA Director John BrennanJohn Owen BrennanIntel agencies' threat assessment matters more than tiff with Trump Intelligence chiefs should be commended, despite Trump's attacks on them Intel operation against Trump still going strong 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 ClintonFor 2020, Democrats are lookin’ for somebody to love A year since Parkland: we have a solution Washington restaurant celebrates holiday with presidential drinks MORE’s, with the exception of President TrumpDonald John TrumpBill Kristol resurfaces video of Pence calling Obama executive action on immigration a 'profound mistake' ACLU says planned national emergency declaration is 'clear abuse of presidential power' O'Rourke says he'd 'absolutely' take down border wall near El Paso if he could 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.”