Rep. John Dingell Hospitalized for Abdominal Pain

Image: Rep. John Dingell (D-MI) Delivers Farewell Address At The National Press Club
Rep. John Dingell (D-MI) speaks at the National Press Club, June 27, 2014 in Washington, DC. Rep. Dingell who is the longest serving member of Congress was Newsmaker Luncheon speaker talked about "When Congress Worked". Getty Images

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Michigan Rep. John Dingell - the longest-serving member of Congress - was admitted to a Detroit hospital Monday after suffering from abdominal pain, but his office says the 88 year-old lawmaker is "doing well."

"Dingell is doing well, is receiving an IV treatment of antibiotics, and remains in good spirits," his office said in a statement. "Doctors expect him to be released in a few days, and Dingell expects to be in Washington for Congressional session next week."

Dingell announced earlier this year that he would not run for re-election in 2014. His wife, Debbie, is running for his congressional seat.

- NBC's Frank Thorp V and Carrie Dann