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The Boston Globe

Metro

Moulton seeks rare upset of fellow Democrat Tierney

Iraq veteran Moulton eyes rare primary upset

SALEM — Since he eked out reelection two years ago with the whiff of a family gambling scandal still trailing him, US Representative John F. Tierney has become Exhibit A in a familiar political cautionary tale: He showed how hard it is to dislodge a Democrat in Massachusetts.

His challenger, Seth Moulton, has heard that one. Still, the first-time candidate is taking on Tierney in the Democratic primary, trying to accomplish what no one in Massachusetts has done in 22 years — unseat an incumbent congressman from his own party.

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