By DARLENE SUPERVILLE

WASHINGTON (AP) — Former President Joe Biden on Monday completed a round of radiation therapy treatment for the aggressive form of prostate cancer he was diagnosed with after leaving office, a spokesperson said.

Biden had been receiving treatment at Penn Medicine Radiation Oncology in Philadelphia, said aide Kelly Scully.

The 82-year-old Democrat left office in January, six months after he dropped his bid for reelection following a disastrous debate against Republican Donald Trump amid concerns about Biden’s age, health and mental fitness. Trump defeated Democrat Kamala Harris , who was Biden’s vice president.

In May, Biden’s postpresidential office announced that he had been diagnosed with prostate cancer and that it had spread to his bones. The discove

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