His daughter, Meghan McCain, thanked those who have supported her family through the treatment process.

During an internal meeting last month, Kelly Sadler dismissed McCain's opinion by saying it "doesn't matter, he's dying anyway."

There were no details on how Sadler would be 'handled.'

Meghan McCain on Friday questioned how the White House aide who disparaged her ailing father, Republican U.S. Senator John McCain, during a meeting, still has a job.

"It doesn't matter, he's dying anyway," communications aide Kelly Sadler reportedly said during a closed-door meeting at the White House.

Vice President Mike Pence will likely attend the service instead, to be held in Washington's National Cathedral, but not President Trump.

It’s been tied to birth defects and brain abnormalities in babies, but could the notorious Zika virus lend a hand in fighting brain cancer?

John McCain, who is battling brain cancer at his Arizona home, is set to help decide whether the repeal push will move forward or perhaps be abandoned entirely.

John McCain's brain tumour is the same kind of cancer Tragically Hip frontman Gord Downie has been diagnosed with.