Montana’s two Republican U.S. senators backed President Donald Trump’s authority to continue military operations against Iran this week, placing themselves on the administration’s side of a renewed fight over the constitutional division of war powers between Congress and the White House.

Sen. Tim Sheehy spoke against S.J. Res. 180 on the Senate floor July 23, shortly before senators rejected a motion to discharge the measure from the Foreign Relations Committee. The resolution called for removing U.S. armed forces from hostilities within or against Iran that had not been authorized by Congress.

The motion failed 47-49, according to the Senate Daily Press. Most Republicans opposed advancing it, although Sen. Susan Collins of Maine voted in favor. Democratic Sen. John Fetterman of Pennsylvania voted against it. Four senators did not vote.

Sheehy, a former Navy SEAL, presented the conflict as a response to decades of attacks linked to Iran and its regional proxies. His office said the resolution would have halted U.S. operations against the Iranian government. During his speech, he also invoked the experiences of American service members and families who have lost relatives in overseas conflicts.

Sen. Steve Daines separately argued that lawmakers retain opportunities to conduct oversight through hearings, briefings and direct engagement with administration officials. He called the Democratic-backed War Powers proposal unconstitutional and defended Trump’s handling of the conflict.

Supporters of the resolution dispute that position. They contend that Article I of the Constitution gives Congress authority to declare war and that prolonged military action without specific authorization erodes that power. The resolution’s language focused on hostilities that Congress had not approved, reflecting continuing concern among some lawmakers about the scope and duration of U.S. operations.

The vote did not settle the larger legal question. Congress has repeatedly debated the effectiveness of the 1973 War Powers Resolution, which was enacted after the Vietnam War to create procedures for consultation, reporting and the withdrawal of forces from unauthorized hostilities. Presidents of both parties have generally resisted interpretations that sharply restrict their power as commander in chief.

For Montana, the debate also carries an unusually personal dimension. Sheehy has emphasized his combat experience when discussing national-security policy, while Daines has remained a consistent Trump ally on Iran. Their votes and public comments place the state’s Senate delegation firmly behind a broad view of executive military authority.

Back in Gallatin County, officials are confronting a more immediate public-safety problem: keeping the Axtell Bridge open without allowing vehicles heavy enough to accelerate its deterioration.

The bridge near Gallatin Gateway was built in 1919 and is restricted to vehicles weighing no more than five tons. County officials and the Montana Department of Transportation have installed barricades to emphasize that the crossing is intended for light vehicles only. A single qualifying vehicle may cross at a time, while vehicles towing trailers and heavy construction loads must use another route.

Officials issued the warning after receiving reports that overweight vehicles were continuing to cross the structure. Gallatin County Commissioner Jennifer Boyer said the bridge is impaired because of its age and long-term use but remains safe when drivers follow the restrictions.

The Gallatin County Sheriff’s Office has increased patrols and can enforce the posted limit. Officials say repeated violations could damage the structure, shorten its usable life and force a complete closure.

Such a closure would have consequences beyond the bridge itself. Residents and visitors would have to travel through Norris Road or Gallatin Gateway, creating longer trips and shifting additional traffic onto other roads. The crossing also provides access to nearby homes and a popular fishing and recreation area.

A replacement is planned, but county officials have said the project is not expected before 2030. That leaves local agencies trying to preserve the existing bridge for several more years through weight enforcement and voluntary compliance.

The Axtell situation illustrates a broader infrastructure challenge facing rural communities: older bridges may remain essential even after they become unsuitable for modern heavy vehicles. When replacement funding and construction schedules extend across several years, relatively simple restrictions can become the primary defense against an abrupt loss of access.

Montana is also at the center of a continuing federal court fight over Yellowstone National Park’s bison-management policies. A consolidated lawsuit challenging the park’s 2024 plan will move forward after the U.S. District Court in Billings denied a federal request to pause the proceeding.

The Alliance for the Wild Rockies and the Council on Fish & Wildlife filed their case against the National Park Service at the beginning of 2026. They argue that federal practices remain rooted in outdated assumptions about the risk that Yellowstone bison will transmit brucellosis to cattle.

Brucellosis is a bacterial disease that can cause reproductive problems in cattle, elk and bison and can also infect humans. The possibility of transmission has shaped Yellowstone bison policy for decades, particularly when animals migrate beyond park boundaries into Montana.

The conservation groups contend that elk, rather than bison, are responsible for documented livestock infections in Montana and that the federal plan does not adequately reflect more recent scientific findings. They are challenging management tools that can include capturing, hazing, hunting or killing bison that leave the park.

Their case has been consolidated with Montana’s separate challenge to the same 2024 management plan. Gov. Greg Gianforte and state agencies sued the federal government in late 2024, alleging that the National Park Service did not provide Montana with a sufficient role in the planning process and did not adequately address risks to livestock producers.

The state and conservation plaintiffs approach the plan from substantially different directions. Montana has argued for tighter population controls and stronger safeguards against brucellosis, while the conservation groups say federal officials are removing too many bison based on an exaggerated disease threat. Both, however, are asking the court to scrutinize how the National Park Service developed and justified the policy.

The 2024 plan replaced a framework dating to 2000 and allows the park to use adaptive management for a herd generally numbering several thousand animals. It also emphasizes live transfers to tribal nations, hunting outside park boundaries and coordination among federal, state and tribal partners.

By allowing the consolidated litigation to proceed, the court preserved a legal confrontation with implications for wildlife science, federal-state relations, tribal restoration programs and Montana’s livestock industry. The ruling did not decide whether the management plan is lawful. It means the competing claims will continue to be litigated rather than being placed on hold.

Together, the three developments show Montana officials operating at markedly different levels of government: debating presidential war powers in Washington, enforcing vehicle limits on a rural bridge and contesting federal wildlife policy in court. Each dispute turns on a similar underlying issue—how public authorities exercise power while managing safety, accountability and competing interests.