Rep. John McCain fields questions from the press while his wife, Cindy looks on on July 8, 1983.

John McCain, 81-year-old Arizona Senator who is battling brain cancer, posted a quick Valentine's Day note to his wife, Cindy Wednesday morning.

The note, posted on his Twitter account, read "Happy to my valentine !" with an old photo of the couple. 

The photo shows Cindy McCain hugging John, who is sporting a flannel shirt and a University of Arizona baseball cap.  

Cindy and John have been married since May 17, 1980. 

McCain was diagnosed with a deadly form of brain cancer last year. McCain missed his personal goal of heading back to the senate in January but is "working hard and gaining strength" according to Senator Jeff Flake


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