But if boomers are a critical constituency for the National Park Service, they are also a graying one.
"The actions today by the DNC to embrace and support a candidate for office who will strip women — one of the most critical constituencies for the party — of our basic rights and freedom is not only disappointing, it is politically stupid," Hogue said in a statement.
Ruffley said he would stand down at the next general election ahead of a critical constituency meeting his constituency party on Thursday that had been due to discuss his police caution for assaulting his ex-girlfriend.
Polls throughout this campaign season continued to attest that evangelical Republicans, the party's critical constituency, remained uncomfortable supporting Romney because of his Mormon faith, something many evangelicals regard as a "cult".
Parsi further explained, in response to Matt Duss of the Center for American Progress, that the critical constituency would be conservative clerics who feel threatened by Ahmadinejad's consolidation of power.
Mr. Obama was annoyed, but senior advisers traveling with him were livid at the prospect of the senator canceling a meeting with this critical constituency.
Unlike those in other Deep South states, rural white voters in Arkansas — identified by the political scientist Jay Barth of Hendrix College in Conway, Ark., as the state's critical constituency — are not easily wooed by an unwavering conservative line.
In fact, last night's game changer may have been a pander of his own, intended to score with the one critical constituency he had lost in the past month: the political media.
He cites Karl Hood of Grenada: "While they develop, we die; and why should we accept this?" As the impact of climate change hits home at the level of national politics, the issue may finally acquire a desperate, critical constituency.
But this critical constituency is also a graying one.
