This peace constituency, often driven by moral and political ideals, provides the key force behind the opposition to U.S. wars in their early stages.
The most effective model America has seen in recent years of how an already-committed minority constituency can drive its party's policies is that of the Tea Party, which staged rallies, won media attention, and (most importantly) ran right-wing candidates in primary elections to force concessions from incumbents.
Therefore it's not surprising to see Obama Campaign Manager, David Plouffe, point to young voters as the main constituency, which drove participation in Iowa and changed the electoral outcome.
On other occasions it is driven by constituency necessity, when union members on one side or voters on the other expect a display of aggravation on their behalf.
Bosnia, Halberstam writes, created a new political constituency in America, one "driven by a memory that connected these events to the atrocities of the Nazis and therefore demanded that other nations ask themselves what their larger purpose was".
Blair was flying to London from his constituency home, or was being driven in the capital, or was in bed next to his wife, when the results for the seat of Hove flashed on screen, or came on the radio, or were relayed to him by aides.
The year 2008 marked the emergence of a Democratic Party driven by surging constituencies of minorities, single women and voters under 30.
Those categories might be driven by political constituencies with a stake in stressing their distinctiveness or by overwhelming increases in immigrants classified as a single group.
It's been driven by a domestic constituency in the U.S".
"His views were not consistent with the Pennsylvania constituency," said Mr. Specter, who was later driven from the Republican Party by conservative opposition and lost his Senate seat in 2010.
