Joseph Kennedy III says he will jump into the race for retiring U.S. Rep. Barney Frank's Massachusetts seat.
"I believe this country was founded on a simple idea: that every person deserves to be treated fairly, by each other and by their government, but that's not happening in America anymore," Kennedy, a Democrat, said on Wednesday, ahead of an announcement scheduled for Thursday.
He said he would work hard to earn every vote and, if elected, would "bring that fight for fairness to the U.S. Congress."
Kennedy, the son of former U.S. Rep. Joseph Kennedy II and a grandson of the late Robert F. Kennedy, recently moved from Cambridge to Brookline, part of the state's newly redrawn 4th Congressional District. The family has deep ties to the Boston suburb.
Kennedy announced last month he was forming an exploratory committee to look at a possible run for the seat. He isn't the only candidate in the race, though.
Republican Sean Bielat, who lost to Frank, a Democrat, in 2010, also has jumped into the contest. He made his announcement official in January.
"I think we started something last time," Bielat, a former U.S. Marine who lives in Norfolk, said at the time. "I think we made some big gains, but we didn't get the job done."
Republican Elizabeth Childs, a former state mental health commissioner under former Gov. Mitt Romney, also has announced her intention to run for the GOP nomination.
The Kennedy family has seen its influence in Washington fade in recent years as its younger generations have largely shunned public office.
The death of Massachusetts Sen. Edward Kennedy, Joseph Kennedy's great-uncle, in 2009 left a void for the family. The retirement of his son, Rhode Island Rep. Patrick Kennedy last year marked the first time in 63 years that a Kennedy wasn't serving in elected office in Washington.
Joseph Kennedy III is a graduate of Stanford University, where he studied management science and engineering and was co-captain of the lacrosse team, and of Harvard Law School, where he served as technical editor of the Harvard Human Rights Journal. He served in the Peace Corps in the Dominican Republic from 2004 to 2006.
Kennedy has not held elective office, but he and his twin brother, Matt Kennedy, served as co-chairmen for Edward Kennedy's final re-election campaign in 2006.
Joseph Kennedy III has served as a prosecutor for the Cape and Islands district attorney's office and more recently as an assistant district attorney in the Middlesex district attorney's office, a job from which he resigned last month.
Last month, he also announced he's engaged to be married to Lauren Anne Birchfield, a fellow Harvard Law School graduate.
Other Democratic candidates in the district, which stretches from the Boston suburbs to Fall River, include Paul Heroux, an Attleboro businessman; and Herb Robinson, a software engineer from Newton.
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