Mayo Clinic

Minnesota Gov. Mark Dayton says he has prostate cancer

Minnesota Gov. Mark Dayton announced Tuesday that he has prostate cancer, revealing the diagnosis hours after collapsing while delivering his State of the State address the night before.

The 69-year-old Democratic governor said he plans to finish the final two years of his term, during which he faces a unified GOP front after Republicans took control of the Senate and strengthened their House majority in November.

Asked whether he still felt up to the job, Dayton said: "I think I am. If I don't, I won't continue."

Dayton underwent tests Tuesday at the Mayo Clinic in Rochester to determine what caused the collapse. In a statement Tuesday evening, Clinic...