“I’m not going to be carried out feet first,” says Dingell, who will be 88 in July. “I don’t want people to say I stayed too long.”

Dingell says his health “is good enough that I could have done it again. My doctor says I’m OK. And I’m still as smart and capable as anyone on the Hill.

“But I’m not certain I would have been able to serve out the two-year term.”

More than health concerns, Dingell says a disillusionment with the institution drove his decision to retire.

“I find serving in the House to be obnoxious,” he says. “It’s become very hard because of the acrimony and bitterness, both in Congress and in the streets.”