Sen. John McCain treated for viral infection, will return to Arizona

Senate Armed Services Chairman John McCain, R-Ariz., arrives for votes on Capitol Hill in Washington, Monday evening, Nov. 27, 2017. President Donald Trump and Senate Republicans are scrambling to change a Republican tax bill in an effort to win over holdout GOP senators and pass a tax package by the end of the year. (AP Photo/J. Scott Applewhite)

Sen. John McCain will be absent from the hill for the upcoming vote on his party's tax reform bill.

The Arizona Republican headed home Sunday to spend the holidays with family and plans to return to the Capitol in January.

“Senator McCain has returned to Arizona and will undergo physical therapy and rehabilitation at Mayo Clinic," McCain's office said in a statement. "He is grateful for the excellent care he continues to receive, and appreciates the outpouring of support from people all over the country. He looks forward to returning to Washington in January.”

McCain, who was diagnosed with brain cancer earlier in the year, has spent the last several days recovering from treatment for a viral infection Walter Reed National Military Medical Center in Maryland.

His missing the vote will make a razor-thin margin even narrower as Republicans rush to pass the tax reform measure ahead of the holidays.

Though his family has said publicly that the 81-year-old is "doing well," others report McCain's health is deteriorating rapidly.

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