4 more and his hair will start to fall out. Oh wait...
Sen. McCain began treatment for glioblastoma, an aggressive form of brain cancer, on July 31. He announced his diagnosis on July 19, to a stunned country who responded with an outpouring of bipartisan support. His cancer was discovered following a doctor's visit and a surgery to remove a blood clot from his eye.
Despite his diagnosis, McCain returned to Washington D.C. and gave a stirring speech in the Senate to a standing ovation. He then returned to Arizona to begin radiation and chemotherapy.
https://townhall.com/tipsheet/christinerousselle/2017/08/18/sen-john-mccain-completes-first-round-of-chemotherapy-n2370564
