Daniel Marcin

The Dean is not ready to retire.

John Dingell is the longest-serving member of the U.S. House in history.

And he wants to serve even longer.

Dingell announced he'll run for a 30th term in Congress, representing the new 12th District of Michigan, which includes parts of Wayne and Washtenaw counties.

The 86-year old Dingell walks and stands with difficulty, using a cane, and he also relies on a hearing aid.

But he says his health is great, he still works 14 to 16 hour days, and he has too much left to accomplish to think about retiring.

"I tell you, I have never figured out how to not worry about the concerns that my people have," Dingell told a small crowd in Ann Arbor.

The press conference was held directly in front of a construction site for the new Stadium bridge, for which Dingell helped secure $17 million in state and federal funds.

He is facing a Democratic challenger in the August primary.

26-year-old Daniel Marcin is a Ph.D. student at the University of Michigan.

Marcin served as Treasurer for a year for the Graduate Employees Organization, a student union at the University of Michigan.

But he has not held an elected public office.