ANNAPOLIS, Md. (AP) — Maryland congressional candidate David Trone says he is being treated for localized cancer.

Trone said Monday a tumor was confirmed in his urinary tract June 25. That was a day before the state's primary, which Trone won to be the Democratic nominee in Maryland's 6th Congressional District.

Trone says since then he has undergone chemotherapy treatment. He says treatment has substantially reduced the tumor's size.

Trone, co-owner of the chain Total Wine & More, says the next step in the recommended treatment is to remove the kidney on that side of his urinary tract. Trone says his treatment team members believe his prognosis is positive.

He says he's been told that while he may miss a few days campaigning after surgery, he is confident he will make a full recovery.