Washington (CNN) - CNN has learned there are now at least five Republican senators who would oppose a filibuster of former Sen. Chuck Hagel to be secretary of defense, all but ensuring the embattled nominee will be confirmed in the coming days.

According to a CNN survey of senators, the five are Thad Cochran of Mississippi and Mike Johanns of Nebraska -who both support Hagel taking over the top post at the Pentagon – and John McCain of Arizona, Richard Burr of North Carolina, and Tom Coburn of Oklahoma – who all oppose Hagel's nomination but also disagree with blocking it by filibuster.
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