The 66-year-old congressman discovered he had prostate cancer in July during a routine check-up and will undergo radiation therapy over the next several months at a Washington hospital, the Milwaukee Journal Sentinel reported Tuesday.
Sensenbrenner said in an announcement that the cancer has not spread and wouldn't keep him from maintaining a schedule of 21 upcoming town hall meetings on healthcare reform.
"It was caught very early," he told the newspaper. "The message that needs to get out is all men should have regular screenings on this. Early-stage prostate cancer is treatable. Both Rudy Giuliani and John Kerry ran for president after being diagnosed with early-stage prostate cancer."