How many with preexisting conditions would be priced out of coverage under Cassidy-Graham?

The easiest way to understand the debate over preexisting conditions in health-care coverage — a debate fueled this week by Jimmy Kimmel’s repeated disparagement of the new Republican plan to overhaul Obamacare — is to look at the Obamacare website.

As of writing, Healthcare.gov explains what protections the Affordable Care Act provides to those with conditions that, before the bill’s passage, may have resulted in denial of coverage or sharply increased premiums.