Sen. John McCain (R-Arizona) is currently recovering after he underwent surgery to remove a blood clot above his left eye on Friday last week. His office confirmed that the senior senator has been diagnosed with brain cancer after his doctor discovered a severe type of tumor during his physical examination last week, CNN Edition reported.

McCain diagnosed with brain cancer

The GOP member reportedly complained about feeling fatigued and having blurry visions when he visited his doctor for his regular check up. He was sent for a CT scan and an MRI following which, they discovered his brain tumor.

McCain was discharged from Mayo Clinic Hospital a day after his surgery after the blood clot was successfully removed. The U.S. senator, who is now resting at his home in Arizona, is reportedly considering treatment options to fully recover from brain cancer. His office also assured that the 80-year-old politician is recovering "amazingly well" after the operation.

His doctors also revealed that the patient showed no signs of neurological problems throughout the procedure. They were even impressed by McCain's sharp memory when he woke up after the surgery.

Sen. John Hoeven (R-North Dakota) said they were "stunned" and "emotional" after learning about McCain's brain tumor diagnosis. He added that the senators were informed about the unfortunate news during a meeting for health care.

Former U.S. presidents Barack Obama and Bill Clinton extended their well-wishes to the GOP senator through social media. Obama said McCain is a hero and a brave fighter who is capable of winning against cancer. Clinton, on the other hand, wished for the senator's speedy recovery.

Internet reacts to Trump's short message

Meanwhile, the incumbent U.S. leader, Donald Trump, released a short statement to extend his thoughts to the senator and his family.

"Senator John McCain has always been a fighter. Melania and I send our thoughts and prayers to Senator McCain, Cindy, and their entire family. Get well soon," the statement read.

Some social media users slammed the president for his "insensitive and awkward" message to someone who has served the country for decades. Others could not help but compare Trump's statement to Obama and Clinton's posts.

Sen. Mitch McConnell (R-Kentucky), on the other hand, believes that McCain will get through this difficulty. “I know that he will face this challenge with the same extraordinary courage that has characterized his life," he added.