As Americans gather for holiday celebrations, many will quietly thank the health care workers who keep their families and friends well: the ICU nurse who stabilized a grandparent, the doctor who adjusted a tricky prescription, the home health aide who ensures an aging relative can bathe and eat safely.

Far fewer may notice how many of these professionals are foreign-born, and how immigration policies shaped in Washington today could determine whether those same families can get care when they need it in the future.

As an economist who studies how immigration influences economies, including health care systems, I see a consistent picture: Immigrants are a vital part of the health care workforce, especially in roles facing staffing shortages.

Yet current immigration policies, such as increased visa fees, stricter eligibility requirements and enforcement actions that affect legally present workers living with undocumented family members, risk eroding this critical workforce, threatening timely care for millions of Americans. The timing couldn’t be worse.

America’s health care system is entering an unprecedented period of strain. An aging population, coupled with rising rates of chronic conditions, is driving demand for care to new heights.

The workforce isn’t growing fast enough to meet those needs. The U.S. faces a projected

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