Dale Sanders, 91, celebrates upon completing his hike of the Appalachian Trail at the summit of Mt. Katahdin, Monday, Aug. 31, 2026 in Baxter State Park in Piscataquis County, Maine. (AP Photo/Robert F. Bukaty)

Dale Sanders, 91, climbs a section of Mt. Katahdin, Monday, Aug. 31, 2026 in Baxter State Park in Piscataquis County, Maine. (AP Photo/Robert F. Bukaty)

Appalachian Trail hiker Dale Sanders wades across Big Wilson Stream on the 100-Mile Wilderness north of Monson, Maine, Wednesday, July 29, 2026. (AP Photo/Robert F. Bukaty)

Grey Beard is a fitting trail name for 91-year-old Appalachian Trail hiker Dale Sanders, seen enjoying a rest, Wednesday, July 29, 2026, north of Monson, Maine. (AP Photo/Robert F. Bukaty)

Dale Sanders, 91, celebrates after completing a difficult section of Mt. Katahdin, Monday, Aug. 31, 2026, in Baxter State Park in Piscataquis County, Maine. (AP Photo/Robert F. Bukaty)

President Donald Trump walks down the stairs of Air Force One upon his arrival at Joint Base Andrews, Md, Friday, Aug. 28, 2026. (AP Photo/Luis M. Alvarez)

FILE - Army Secretary Dan Driscoll speaks at the United States Army War College in Carlisle, Pa., during the Pennsylvania Defense and Innovation Summit, July 15, 2026. (AP Photo/Matt Rourke, File)

FILE - U.S. Army Secretary Dan Driscoll speaks at the America 250 celebration at Fort Bragg in Fayetteville, N.C., June 10, 2025. (AP Photo/Karl DeBlaker, File)