Between 20,000 to 30,000 people visit Yellowstone National Park each month in the winter, many to snowmobile the park's groomed roads and trails. To keep the park open during the shutdown, local hotels have teamed up with concessionaires to pay park employees to plow and groom roads, as well as to clean bathrooms. Eric Whitney/Montana Public Radio hide caption

Anna Whiting Sorrell, a member of the Confederated Salish and Kootenai Tribes in northwest Montana, had hernia surgery a couple of years ago. The Indian Health Service picked up a part of the tab for the surgery but denied coverage for follow-up appointments. Mike Albans for NPR hide caption

Steve Daines of Montana (right) talks with fellow Republican Sens. Mitch McConnell and Pat Roberts in a White House meeting in June on the GOP health care strategy, which would include deep cuts to Medicaid. Montana insurers say the plan worries them. Nicholas Kamm/AFP/Getty Images hide caption

The three candidates, from left, Republican Greg Gianforte, Democrat Rob Quist and Libertarian Mark Wicks, who are vying to fill Montana's only congressional seat. Bobby Caina Calvan/AP hide caption

Rob Quist, the Democrat who's running for an open U.S. House race in Montana, campaigns at the University of Montana on April 27, 2017. Quist is a political newcomer who's a well-known country singer in the state. Josh Burnham/Montana Public Radio hide caption

Every spring Yellowstone opens about 50 miles of its main thoroughfares to bikes only. Jacob W. Frank/National Park Service hide caption

Mary Lynne Bill-Old Coyote, Montana's director of Indian health, says the ACA has helped build the community by providing job opportunities. Montana saw 3 percent growth last year in the number of health care jobs. Courtesy of Thom Bridge/Helena Independent Record hide caption

Ruth McCafferty, who works in Kalispell, Mont., credits the training she got through the state's Medicaid expansion with helping her get a good job. Eric Whitney / MTPR hide caption

Nurses teach patients how to use equipment and do peritoneal dialysis at home. Life in View/Science Source hide caption