Delta Air Lines has no planes and no operations in Paulding County, some 40 miles from its Atlanta hub.

But, in the broad, multi-pronged campaign to block plans for the commercialization of Paulding’s airport, the airline is one of the biggest players.

No longer is the opposition limited to a ragtag handful of local residents. Joining the fight are at least four heavy-hitting law firms. So far, those firms combined have filed three lawsuits; submitted open records requests for piles of documents; taken depositions from airport and county officials; and started a website and a nonprofit 501(c)(4) — a “social welfare” classification that includes issue advocacy groups.

Paulding County officials says the legal opposition is being financed by Delta. They also say Delta is meddling where Delta doesn’t belong — in a local matter.

See more of this story in Thursday's Atlanta Journal-Constution and on MyAJC.com for subscribers.