John McCain diagnosed with brain cancer

The Hill: Sen. John McCain (R-Ariz.) has been diagnosed with brain cancer, the Mayo Clinic Hospital in Phoenix said Wednesday.

The tumor was discovered after the senior Arizona senator underwent a minor procedure last week to remove a blood clot from above his left eye.

"Subsequent tissue pathology revealed that a primary brain tumor known as a glioblastoma was associated with the blood clot," the hospital said in a statement.

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