What Is Glioblastoma? 5 Facts About John McCain's Brain Cancer Diagnosis
During the much-watched Senate hearing over former FBI Director James Comey last month, many noted that McCain's line of questioning was a confusing one.
"He referred to 'President Comey,' and at times looked confused and frustrated with Comey's answers," reported The Washington Post in June.
"Viewers clearly thought it was notable; Twitter announced it was the most-tweeted moment of the hearing."
Given that, in addition to seizures and headaches, symptoms of glioblastoma include confusion and memory loss, some are now speculating that the bizarre line of questioning may have been an indicator of his recent diagnosis.