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National Security & Military

As a member of the Senate Homeland Security Committee, Jon's top priority is keeping Montanans safe. That's why he works hard to ensure our country's military, law enforcement officers, and first responders have the resources they need to keep our families secure.

Jon has voted for pay raises for America's troops, protected the flying mission at the Montana Air National Guard, and passed legislation to better secure Montana's 540-mile northern border with Canada.

In response to a growing number of hacks and security breaches, Jon has also led the effort to close security loopholes and prevent future insider threats by reforming the security clearance and background check processes to ensure that America's most sensitive information doesn't end up in the wrong hands.

Jon also believes the Inter-Continental Ballistic Missile (ICBM) fleet at Malmstrom Air Force Base is the most cost-effective deterrent to ensure the nation's safety. That's why Jon has worked so hard to help modernize Malmstrom's ICBM fleet, ensuring that the base remains safe and active for many years to come.

As Ranking Member of the Senate Homeland Security Appropriations Subcommittee, Jon crafts the Homeland Security budget which includes U.S. Customs and Border Patrol, the Transportation Security Administration, Immigration and Customs Enforcement, and the Federal Emergency Management Agency. This makes him acutely aware that while we must keep America safe, the cost of war is profound and will be felt by returning service members and American taxpayers for decades to come.

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Office Contact Information

Senator Tester's Montana staff serves the state from offices in Billings, Bozeman, Butte, Great Falls, Helena, Kalispell, and Missoula. Please bring your concerns with federal agencies, academy nominations, and other situations to one of these Montana offices.


Judge Jameson Federal Building
2900 4th Ave N, Suite 201
Billings, MT 59101
Phone: (406) 252-0550
Fax: (406) 252-7768


Avant Courier Building
1 E Main Street, Suite 202
Bozeman, MT 59715
Phone: (406) 586-4450
Fax: (406) 586-7647


Silver Bow Center
125 W Granite, Suite 200
Butte, MT 59701
Phone: (406) 723-3277
Fax: (406) 782-4717

Great Falls

119 1st Avenue N, Suite 102
Great Falls, MT 59401
Phone: (406) 452-9585
Fax: (406) 452-9586


208 North Montana Avenue
Suite 104
Helena, MT 59601
Phone: (406) 449-5401
Fax: (406) 449-5462


8 Third Street E
Kalispell, MT 59901
Phone: (406) 257-3360
Fax: (406) 257-3974


130 W Front St.
Missoula, MT 59802
Phone: (406) 728-3003
Fax: (406) 728-2193

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