The GOP lawmakers point to an Inspector General report on state use of federal dollars.
The law had been intended to reduce the need to rely on emergency rooms.
The number is on top of an additional 11.7M who signed up for private insurance.
Manufacuturers are allegedly mislabeling products.
A Supreme Court ruling against the law would give Republicans new leverage.
Rep. Earl Blumenauer's amendment failed narrowly by a vote of 210-213.
The study points to Medicaid expansion under the law as helping hospitals.
The District law forbids employment discrimination based on reproductive health decisions.
Lawmakers had been negotiating the bipartisan, multi-billion dollar initiative for a year.
Some companies are still charging women out-of-pocket costs for birth control, report states.
Sen. Patty Murray says insurers must do more to promote contraception coverage.
Officials touted a pilot program to change Medicare's payment system.
Despite budgetary obstacles, bipartisan support is raising hopes for a funding increase.
The state says it will set up its own marketplace under the law.
The Louisiana governor urged Congress to take action, “regardless of the avenue.”
GOP leaders should use reconciliation to send a repeal to the president's desk.
The controversial law bars workplace discrimination based on reproductive health choices.
Barbara Mikulski called for more money for the National Institutes of Health.
Rick Scott is suing the government over a fight he says is related to Medicaid.
A government watchdog said the issue demands "immediate attention."
Nearly 3.5 million people on small-business plans would face “substantially” higher premiums.
How and why did Congress qualify as a "small business" under ObamaCare?
The debate has slowed the final version of the 21st Century Cures initiative.