Key facts
- Trump administration officials are pushing for swift approval of a mitigation plan for a proposed arch.
- Local departments and nonprofits argue the review process is premature.
- The arch is now designated to include ammunition storage and snipers.
- The National Park Service identified dozens of historic properties that would be harmed by the structure.
- A veterans group is suing to block construction of the arch.
- Interior Secretary Doug Burgum announced excavation work would begin soon.
Trump administration officials are accelerating plans for a controversial arch, prompting pushback from local historians and preservation groups who argue the review process is being rushed. The National Park Service (NPS) is seeking swift approval for a mitigation plan, with NPS official Tammy Stidham urging relevant parties to consult on measures like vibration alert devices at historic properties during construction.