McCain's 106-year-old mother attends son's memorial services at US Capitol
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Sen. John McCainJohn Sidney McCain The 13 Republicans needed to pass gun-control legislation Biden's debate performance renews questions of health At debate, Warren and Buttigieg tap idealism of Obama, FDR MORE's (R-Ariz.) 106-year-old mother, Roberta McCain, visited Washington, D.C., on Friday to attend her son's memorial services.

Footage shows McCain being escorted in a wheelchair to see her son’s coffin in the Capitol rotunda. 

John McCain credited his mother in one of his books with "the strengths she taught [him] by example." 

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"My mother was raised to be a strong, determined woman who thoroughly enjoyed life, and always tried to make the most of her opportunities," John McCain wrote. "She was encouraged to accept, graciously and with good humor, the responsibilities and sacrifices her choices have required of her. I am grateful to her for the strengths she taught me by example."

Roberta McCain married John McCain Jr. at age 21 and moved around to accommodate his posting with the Navy. 

The elder McCain would later go on to become a Navy admiral. The late senator’s mother also traveled abroad often with her twin sister and accompanied her son on the campaign trail during his 2008 presidential bid, despite being well into her 90s, according to The Associated Press

John McCain died Saturday at age 81 after being diagnosed last year with an aggressive form of brain cancer. His death came one day after his family announced their decision to discontinue medical treatment. 

The late Arizona Republican received an outpouring of tributes and respect from friends and colleagues across the political spectrum following the news of his death.