Rep. John Dingell (D-Mich.) only just announced he was retiring after 29 long terms in the House at the end of the year, and his wife, Debbie Dingell, is already a favorite to replace him in Michigan's 12th congressional district.

She's currently chair of the Wayne  State University Board of Governors. Bill Ballenger, who write the Inside Michigan Politics newsletter, told the Detroit News, “That will be the decision that everybody is looking for." The Cook Political Report has already given her frontrunner status in the race. The one catch: she hasn't said she's running yet.

When asked about his wife's political ambitions by the Washington Post today, Dingell said, “You’ll have to talk to the lovely Deborah. She is the one who is going to make that decision. She has not told me what she’s planning on doing. She is making up her mind at this time."

U.S. Rep. John Dingell (D-Mich.), 87, the longest serving member of Congress in U.S. history, walks to the head table with his wife Debbie before announcing his retirement at a luncheon Feb. 24, 2014 in Southgate, Michigan. Dingell began serving in Congress in 1955, taking over the seat his father vacated. (Photo by Bill Pugliano/Getty Images)

The speculation on the future of Dingell's congressional seat, which he's kept warm for nearly 60 years, will have to go on for the near future.

"I want that woman to be happy," he continued. "If she wants to run for Congress, I want her to do that. To be very truthful with you, I think she’d be one hell of a good congresswoman. She’s able and decent and smart and tough as hell.”