A four-year-old fight between the Catholic Church and the Obama administration reaches the Supreme Court on Wednesday, in a bishop’s challenge to the health-care law’s contraception requirements that could alter the boundaries of religious freedom.

Eight justices will weigh how far the government has to go to accommodate religiously affiliated employers that object to including contraception in workers’ insurance plans. The outcome could affect as many as a million Catholic nonprofit employees. The case comes after the court’s 2014 Hobby Lobby ruling that for-profit businesses could assert such objections.

The co-ops represent a modest component of the sweeping 2010 health law that put new coverage requirements on insurers and required most Americans to have health insurance or pay a penalty. The co-ops were included to foster nonprofit health insurance providers to compete in the individual and small group markets.

The report will be released in advance of a Senate Finance Committee hearing on Thursday. It is likely to spur more questions about prospects of the Obama administration’s $2.4 billion co-op program.

Thousands of doctors, hospitals and providers in some states still haven’t been paid for health services given to members insured by the co-ops. More than half a million people signed up for health insurance under the ACA lost coverage or had to get new insurance because their co–op had folded.

The two principal expenditures of the Affordable Care Act so far include $850 billion for insurance subsidies and a similar outlay for a massive Medicaid expansion. The truth is that Medicaid—a program costing $500 billion a year that rises to $890 billion in 2024—funnels low-income families into substandard coverage. Instead of providing a pathway to excellent health care for poor Americans, ObamaCare’s Medicaid expansion doubles down on their second-class health-care status.

Published studies have shown that pairing HSAs with high-deductible coverage reduceshealth-care costs. Patient spending averages 15% lower in high-deductible plans, with even more savings when paired with HSAs—without any consequent increases in emergency visits or hospitalizations and without a harmful impact on low-income families. Secondarily, wellness programs that HSA holders more commonly use improve chronic illnesses, reduce health claims and save money.

Christopher E. Press nails our experience (“$lammed by ObamaCare,” op-ed, March 8). My wife and I are self-employed and were content with our modest, cost-effective health insurance. By “self-insuring,” we knew we risked a little higher deductible if something were to happen.

When the president talked up his health-care plan, we weren’t really concerned since he promised, “If you like your health-care plan, you can keep [it],” and “keep your doctor,” too. Then he slammed our carefully chosen policy as having “inadequate” coverage. When ObamaCare was rammed through Congress, not only did we scramble to keep the doctors who had cared for us for years, but we paid double for the bronze plan that was most similar to our previous (now canceled) coverage. And, of course, our deductibles went up.

What does the president consider “adequate” coverage for two people past age 55 with no kids? Maternity benefits and teen dental coverage? How helpful. What is the point of ObamaCare? Better health care? Hardly. It’s called “redistribution.”

Most people who got tax credits to buy insurance under the federal health law will be repaying part of them for the second year in a row, according to a leading tax preparer.

H&R Block Inc. executives said Tuesday that, to date, 60% of 2015 tax filers with the credit have found that they owe the government money because they had been credited too much. That is up from 52% last year, the first year in which filers had to reckon with reporting the credit and figuring out if their income projections had been accurate.

On average, tax filers were repaying almost $580 each for excessive credits, up from $530 for overpayments during the 2014 filing year.

This year my family joined millions of others whose health-insurance premium has become their biggest annual expense. More than our mortgage. More than our property taxes. More than our state income tax. More than our annual food or energy costs. With this year’s $194-a-month premium increase, I could roughly buy a Chevy Sonic or Ford Fiesta. Since 1999 our premiums are up 350%. Bad as this is, the story gets worse.

Each year our family is subject to paying health-insurance premiums and, if we see a doctor, deductibles and copays. Think of this total exposure as “health-care cost risk”—the sum of certain payments (premiums) plus the potential payments you could incur (copays and deductibles).

. . .

The State Department released the last batch of Hillary Clinton’s emails on Monday, and the exercise has been instructive about her recklessness with classified material. But as a side note, we ought to memorialize what President Obama’s aides were telling Mrs. Clinton about the Affordable Care Act, which was the opposite of what their boss was telling the public.

Despite her duties as top diplomat, Mrs. Clinton found time to follow ObamaCare’s progress in Congress, and she received regular updates from Neera Tanden, then a White House health staffer. Ms. Tanden is now president of the liberal Center for American Progress, Mrs. Clinton’s economic policy shop.

Leaders of some health cooperatives set up under the Affordable Care Act said it would be hard for the Obama administration to recoup more than $1 billion in federal loans made to some of the organizations that are now defunct, because most of the money has been spent.

A group representing existing co-ops, as well as leaders of some of the organizations, said there is little of the federal loan money remaining and some of what is left is needed to pay providers whose bills have yet to be paid. Obama administration officials have said they plan to use every available tool to recoup the federal loans, including legal action.

Thousands of doctors, hospitals and other providers in some states still haven’t been paid for health services they provided to members insured by the co-ops, which are organizations set up under the health law to offer health insurance to consumers and cut costs by giving established insurers more competition.

After most health insurers racked up financial losses on Affordable Care Act plans in 2014, many companies’ results for last year worsened, creating heavy pressure to improve performance this year.

An analysis of filings by not-for-profit Blue Cross and Blue Shield insurers—among the biggest players in the law’s exchanges for buying individual insurance—shows the challenge facing the industry as it seeks a turnaround in the individual business. They paid out more for health care in the first three quarters of 2015 than they took in from premiums on their individual plans.

On Wednesday, Humana Inc. became the latest of the big publicly traded companies to flag problems, saying its losses on individual plans deepened last year. Humana included in its 2015 results $176 million in losses it expects to incur on such plans in 2016.

Private health insurers made a Faustian bargain with Democrats in 2010: In return for supporting passage of the Affordable Care Act, the companies would be able to grow their business with subsidized customers who were required to buy insurance. How’s that working out?

Except for Dr. Faustus, not great. Democrats lost control of the House and Senate thanks in considerable part to their votes passing ObamaCare on partisan lines. And now we’re learning that private health insurers are losing money on their Affordable Care Act business, as Aetna was the latest to acknowledge on Monday during its quarterly earnings report.