The former manager for John McCain's 2008 presidential campaign reflected on the life of the late senator Saturday on Fox & Friends.

McCain, a six-term senator and two-time presidential candidate, died of brain cancer on Aug. 25 at the age of 81.

A viewing of his casket took place at the U.S. Capitol in Washington, D.C., on Friday, and a final memorial service at the Washington National Cathedral was scheduled for Saturday.

Rick Davis said that the most poignant moment of McCain's career was the GOP nomination-acceptance speech he gave at the 2008 Republican National Convention.

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"I saw it as a stunning achievement for a man who really didn't expect to get much out of politics other than a good fight," Davis said.

He added that McCain was extremely excited for and proud of that moment.

On Thursday, a memorial service held at the North Phoenix Baptist Church included remarks from NFL star Larry Fitzgerald, former Vice President Joe Biden and others.

Saturday's service was when McCain's friends would be remembering the late senator, Davis said.

"His friends just happened to have big names, but they were still his friends."

Davis said McCain was always a very positive person and that he became more reflective in the months leading up to his passing.

"He was very focused on the future. I mean, this guy never looked backwards," he said of McCain. "Even in his last few months of life, he was thinking about what [we can] do to leave the country a better place."

McCain will be buried on Sunday in a private ceremony at U.S. Naval Academy's cemetery in Annapolis, Maryland.

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