McCain: I'll be right back.

Senator John McCain's lovers are following that prayer and messages for rapid recovery after reports that the 80-year-old politician has been diagnosed with brain cancer that was discovered during a surgical intervention.

Mr. McCain's doctors say he's reacting very well after the operation.

Glioblastoma is an aggressive type of brain cancer, according to Mayo Clinic doctors in Finix.

Senator and his family are seeing the possibility of further treatment, including chemotherapy and radiation. He is currently in his Arizona home.