Seth Klamann

Immigration reporter

Seth Klamann

Seth Klamann covers politics, immigration and the state house for The Denver Post. A proud Kansas City native and University of Missouri grad, he previously worked for the Colorado Springs Gazette, the Casper Star-Tribune and the Omaha World-Herald. Outside of work, he enjoys watching soccer, going on road trips and eating fried food.

Federal law enforcement officers detain two men during an immigration enforcement operation at the Cedar Run Apartments on South Oneida Street in Denver on Wednesday, Feb. 5, 2025. (Photo by Hyoung Chang/The Denver Post)

Immigration arrests in Colorado have surged under the Trump administration. Now we know how much.

July 9, 2025 at 9:36 a.m.

ICE arrests in Colorado this year amount to more than 9 per day, on average, since Jan. 20, according to new data that shows a nearly 300% increase compared to...

Colorado Gov. Jared Polis speaks alongside Colorado Attorney General Phil Weiser and U.S. Senator Michael Bennet, D-Colo., during the opening of the Colorado Democrats鈥� field office in Aurora, Colorado, Tuesday, June 28, 2022. (Photo by Jintak Han/The Denver Post)

Colorado officials blast Republican Senate tax bill as final passage — and Medicaid cuts — loom

July 1, 2025 at 5:41 p.m.

Colorado's Democratic leaders blasted congressional Republicans' tax bill as a "complete betrayal" after the bill passed the U.S. Senate and hurtled toward its potential final passage later this week.

John de Jong, right, uses laser technology for target practice as Anubis Heru, lead trainer, monitors his shooting at 1770 Armory and Gun Club in Denver on Friday, Oct. 24, 2020. (Photo by Rachel Ellis/The Denver Post)

These new Colorado laws take effect Tuesday — regulating gun shops, sexual assault cases, youth detention and more

July 1, 2025 at 12:00 p.m.

New laws regulating Colorado gun store licenses, firearm permits and the number of youth the state can keep in pretrial detention kicked into effect Tuesday. Here's a rundown of others,...

Colorado State Rep. Ryan Armagost works at the Colorado State Capitol on February 8, 2023, in Denver. (Photo by RJ Sangosti/The Denver Post)

Republican state legislator from Berthoud resigning for new job in Arizona

June 30, 2025 at 10:05 a.m.

Republican state Rep. Ryan Armagost will resign from the legislature later this summer in pursuit of a job opportunity out of state.

A construction site at the Looking Glass development in Parker on Wednesday, June 25, 2025. (Photo by Hyoung Chang/The Denver Post)

As contentious Colorado housing laws take effect, some cities are playing nice — while others resist or sue

June 29, 2025 at 6:00 a.m.

A new Colorado law "would eliminate city standards and put in place state standards," Mayor JD Mangat says. "This is going to have really detrimental impacts on Lafayette. This approach...

UCHealth University of Colorado Hospital at Anschutz Medical Campus is one of several hospitals working to get ready for the peak of patients due to the COVID-19 crisis on March 31, 2020 in Aurora, Colorado. (Photo by RJ Sangosti/The Denver Post)

Colorado health officials brace for layoffs amid loss of federal funding from Trump administration

June 28, 2025 at 6:00 a.m.

Colorado's health department is bracing for several layoffs for workers focused on cancer and heart disease prevention, thanks to the apparent loss of nearly $2 million in federal funding.

The cast of "The Conversation," a dramatized conversation between people with different perspectives about the Israel-Gaza conflict, are bringing their play to the Buntport Theater in Denver next week. (Photo courtesy of Ami Dayan)

Colorado play about Israel-Gaza debate explores difficult conversations as crisis deepens

June 28, 2025 at 11:05 a.m.

"It creates a sense of (intellectual) danger, in my opinion, because you might be challenged," Ami Dayan said. "I might be uncomfortable, but I'm willing to go there, and I'm...

Colorado Gov. Jared Polis speaks during an event outside the Boulder County Courthouse on the Pearl Street Mall in Boulder on Wednesday, June 4, 2025. (Matthew Jonas/Daily Camera)

Denver judge says ICE subpoena doesn’t comply with state law, but doesn’t prohibit Polis from responding

June 25, 2025 at 8:02 p.m.

"I am relatively certain that I could find law that says if somebody wants to violate the law, somebody else can't get an injunction to stop them from doing it."

Scott Moss, then a director in the Colorado Department of Labor and Employment, takes part in a rally and news conference on the east steps of the City and County Building in Denver on June 9, 2025. Labor and civil rights leaders organized the event in part to discuss the state's intent to cooperate with an Immigration and Customs Enforcement subpoena that Moss sued over. (Photo by Helen H. Richardson/The Denver Post)

Judge voices skepticism toward state’s move to comply with ICE subpoena: 鈥楢m I going to believe my own lying eyes?鈥�

June 23, 2025 at 5:15 p.m.

A Denver judge appeared unpersuaded Monday that a subpoena referencing child abuse gave Gov. Jared Polis latitude to side-step state law and turn over personal information to immigration authorities.

The north entrance to the Rocky Mountain Regional Veterans Affairs Medical Center in Aurora, Colorado, on August 19, 2021. (Photo by Rebecca Slezak/The Denver Post)

Colorado attempts crackdown on 鈥榗laims sharks鈥� for veterans benefits amid national debate over industry

June 23, 2025 at 6:00 a.m.

"They're essentially trying to steal veterans' benefits from veterans."

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Seth Klamann

All Stories

Immigration arrests in Colorado have surged under the Trump administration. Now we know how much.

These new Colorado laws take effect Tuesday — regulating gun shops, sexual assault cases, youth detention and more

Republican state legislator from Berthoud resigning for new job in Arizona

As contentious Colorado housing laws take effect, some cities are playing nice — while others resist or sue

Colorado health officials brace for layoffs amid loss of federal funding from Trump administration

Colorado play about Israel-Gaza debate explores difficult conversations as crisis deepens

Denver judge says ICE subpoena doesn’t comply with state law, but doesn’t prohibit Polis from responding

Judge voices skepticism toward state’s move to comply with ICE subpoena: 鈥楢m I going to believe my own lying eyes?鈥�

Colorado attempts crackdown on 鈥榗laims sharks鈥� for veterans benefits amid national debate over industry