The case filed Friday in U.S. District Court in Washington, D.C., takes aim at so-called short-term plans that don't have to cover people's pre-existing medical conditions, or provide standard benefits like prescription drugs. The administration recently adopted regulations to encourage the spread of such plans, featuring premiums about one-third the cost of comprehensive insurance.
Among their arguments, the groups say that those regulations violate the Obama-era Affordable Care Act.
The administration says short-term plans may not be right for everyone, but they could be an important option for some consumers who can't afford "Obamacare."
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