Story highlights Sen. John McCain said he won't support a continuing resolution over defense spending

His comments come as leaders are making a serious effort to negotiate FY 2017's appropriations

See Sen. John McCain interviewed by David Axelrod Saturday, April 1, on the first-ever TV version of the successful "Axe Files" podcast.

(CNN) Sen. John McCain said Wednesday he will do whatever it takes to make sure that military spending is increased in the next spending bill even if that means shutting down the government.

The Arizona Republican told CNN he wouldn't vote for a continuing resolution, a funding bill that maintains the previous spending levels. When asked how far he would go, McCain said he only had one vote, but that he wouldn't rule out a shutdown.

"If that's the only option. I will not vote for a CR no matter what the consequences because passing a CR destroys the ability of the military to defend this nation, and it puts the lives of the men and women in the military at risk," McCain said. "I can't do that to them."

McCain's comments come as leaders are making a serious effort to negotiate the remaining appropriations bills for Fiscal Year 2017 that would likely include some of the new military spending that McCain is pushing for.

Congressional leaders are up against a tight deadline. After last week's failure to pass the health care bill out of the House , there are questions about how much leaders can get passed even if their goal remains to finish appropriations bills instead of passing a continuing resolution. Congress has to come to an agreement before the government runs out of money April 28.

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