Caroline Kennedy to campaign for Elizabeth Warren Friday; Weld to formally endorse Scott Brown

Republican US Senator Scott Brown is set to pick up the endorsement of the prototypical Massachusetts moderate Friday morning — former Governor William F. Weld.

A half an hour later, Elizabeth Warren will receive the endorsement of a member of a storied Democratic family—President Kennedy’s daughter, Caroline.

While not a surprise, Weld’s endorsement is a reminder of the 1996 Senate race, when Weld gave Democratic US Senator John F. Kerry a strong challenge, ultimately losing by 7 percentage points.

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The dynamics were similar to the race between Brown and Democrat Elizabeth Warren, with Weld the more personally popular candidate working against a Democrat in a presidential year. Ultimately, party politics — the debate over which party would control the Senate — helped foil Weld’s bid. Kerry formally endorsed Warren last week.

Weld, who served as governor from 1991 through 1997, now works for McDermott Will & Emery as an attorney. Though he lives in New York, he remains an active voice, and an enduring influence, in the Massachusetts Republican Party.

The endorsement is scheduled for 9:30 a.m. in Brown’s South Boston headquarters.

At 10 a.m., Kennedy, a New Yorker active in Democratic and philanthropic circles, will campaign with Warren at the Zelma Lacey House, an assisted living facility in Charlestown. Both women will be joined by Mayor Thomas M. Menino, who endorsed Warren last month.