The phrase "a significant constituency" is correct and usable in written English.
It can be used when referring to a large and important group of supporters or members within a particular context, such as politics or community organizations.
Example: "The new policy has garnered support from a significant constituency, which could influence the upcoming election."
Alternatives: "a substantial group" or "a major supporter base."
Behind the 1998 accord that has brought stability to Northern Ireland is a conviction that these people, once perpetrators of mayhem, can be a significant constituency for calm.
AB & ZM: We certainly engage this narrative in the sense that unemployed or underemployed youth were a significant constituency of all the protests we examined.
What's encouraging about these moments is that they show a significant constituency is receptive to a more humane kind of politics.
The early leader is Zalmay Rassoul, a polished former foreign minister who would be welcome in any Western capital but lacks a significant constituency in Afghanistan.
While Mr. Stringer said he was not doing so for political gain, it could raise his standing among gay and lesbian voters, a significant constituency in the city.
Pleas for an exemption from the SDSR make more sense if you realise that there is a significant constituency within Whitehall and the armed forces that thinks that the benefits no longer justify the costs.
"He just wasn't making a connection with any significant constituency, certainly not with the groups in the identity politics of today's Democratic party," wrote conservative columnist and elections guru Michael Barone.
Brazil's big foreign policy momentum has slowed with its economy, and despite Joe Biden's seriousness of purpose, Brazil still does not have a politically significant constituency in the rest of the United States.
Neither one can be considered a spokeswoman for a significant Muslim constituency in the Middle East.
Rove never pushed for a policy unless he saw a group of big funders or a significant electoral constituency which it might bring to the Republican Party.
