Politics

Joseph Kennedy III takes steps toward run for Congress

Joseph P. Kennedy III is taking the final steps to launch a run for Congress this year, hoping to succeed US Rep. Barney Frank, who will retire rather than run in his reconfigured district.

Kennedy is forming an exploratory committee for the seat. The 31-year-old today also announced his resignation as a prosecutor in the office of Middlesex District Attorney Gerard T. Leone Jr., where he has worked since September. He will leave state employ Jan. 20.

“I am announcing today my intention to explore a candidacy for the United States Congress in the Fourth District of Massachusetts,’’ he said in a statement issued this morning. He said he will decide over the next several weeks whether to formally run for office, after speaking with voters.

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