BRUNSWICK, Maine (AP) — Sen. Angus King of Maine says he's dodged cancer three times now that he's completed radiation treatments for a residual recurrence that followed prostate surgery four years ago.

King posted on Instagram that he wrapped up the regimen Tuesday that included weekday visits to George Washington Hospital for more than a month.

The treatments, which began Jan. 14, didn't prevent him from going to work each day.

The 74-year-old senator said that he's been able to escape cancer because of early detection over the course of regular checkups. He said that's why he can't understand why anyone would want to "limit, reduce, or restrict people's access to health insurance."

The senator had prostate gland removed in 2015. The localized, radiation treatments followed after doctors noticed elevated PSA levels.