Federal officials are recommending early release from prison for former Massachusetts House Speaker Salvatore DiMasi as he battles cancer.

The U.S. Bureau of Prisons and federal prosecutors filed a court notice requesting that DiMasi's sentence be reduced to time already served so he can be released immediately. The once-powerful Democrat has served almost five years of an eight-year prison term for corruption.

Since his 2011 conviction, DiMasi was diagnosed with tongue cancer and later prostate cancer.

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Thursday's compassionate release recommendation for DiMasi is intended for inmates with terminal illnesses as well as elderly inmates who have served a significant portion of their sentences. A judge must approve the request.

The 71-year-old DiMasi, a Democrat, was convicted of steering state contracts to a software firm in exchange for $65,000 in payments.