Battling cancer, McCain says his prognosis is 'pretty good'

US Senator John Mc Cain says his brain cancer is 'very vicious' but the treatment is going well

Tapper pointed out that back in 2012, in the context of superstorm Sandy, McCain's daughter Meghan tweeted, "So are we still going to go with climate change not being real fellow republicans?" In the past, he has been treated for melanoma, a form of skin cancer.

McCain is chairman of the Senate Armed Services Committee, and he aims to spend the coming week shepherding the all-important defense spending bill through the chamber.

"The Republican Party as you know, generally speaking, acts as if climate change is not real", Tapper began.

McCain added he thinks nuclear power needs to be "part of the answer" to global warming. "We can take common-sense measures".

"This was not an exercise in bipartisanship", McCain said.

McCain was re-elected to a sixth Senate term in November.

McCain then launches into a discussion of the solutions. A spending deal should have been negotiated and should have included billions more for the military, he said. "Under this agreement, they not only don't have everything they need, their lives are in greater danger".

He is recommending the USA provide missile defense in South Korea and Japan, and work further with China to, "put the brakes on Kim Jong Un".

"All the results so far are excellent", he said in an interview with State of the Union.

"Every life has to end one way or another", he told CNN, adding that he was very happy with his life, including the 2008 campaign that he lost to former President Barack Obama.

The Arizona Republican, who was diagnosed with brain cancer in July, said he will receive a magnetic resonance imaging test on Monday and expressed optimism about his condition.

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