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WASHINGTION — U.S. Sen. John McCain of Arizona has been diagnosed with a brain tumor after a blood clot was removed, according to the Mayo Clinic through a statement with his office.

MORE: Sen. John McCain, family reviewing further treatment options after brain cancer diagnosis, statement says

— CBS Ì«×Ó̽»¨ (@CBSÌ«×Ó̽»¨)

McCain’s daughter, Meghan McCain, issued a statement on Twitter:

Statement regarding my father :

— Meghan McCain (@MeghanMcCain)