The "Mandy" singer announced his cancer diagnosis in December.
Dole overcame severe World War II wounds to lead Senate GOP and run for president.
For so long, lung cancer has been unfairly labeled as a smoker's disease but turns out you can still get it from your environment alone.
"Whether I like it or not, I think I'm a resilient survivor," Kathy Griffin said in an interview with ABC's "Nightline."
"I ask all of you for your prayers during this time and that my music can live on with you," the Rosenberg native said in a statement this week.
"While I certainly have some hurdles ahead, I also know that I join millions of Americans who face significant health challenges of their own."