The GOP's so-called "big beautiful bill" cut taxes in many ways, but didn't extend a tax break that lowered health insurance premiums for millions of people.

• The so-called "big beautiful bill" that President Donald Trump signed on July 4 cut taxes for many households.
• However, the law didn't extend an enhanced premium tax credit that has lowered health insurance premiums for millions of Affordable Care Act enrollees in recent years.
• The tax break is slated to end after 2025, which is expected to raise premiums by an average 75% and lead about 4 million people to lose health insurance.