Americans shopping for 2026 Obamacare health insurance plans are facing a more than doubling of monthly premiums on average and are likely to postpone signing up in hopes of a last-minute reprieve, or walk away, health experts say.

COVID-19 pandemic-era subsidies, due to expire at year-end, are at the center of the month-long U.S. government shutdown, with the potential to affect election outcomes and increase the rate of U.S. uninsured.