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Obama administration attorneys are urging a federal judge to throw out an election-year lawsuit by House Republicans over the president's health care law. Attorneys for the House counter that their unusual suit deals with critically important issues related to the separation of powers and should be allowed to continue. (Werner, 5/28)

The House lawsuit zeroes in on two changes to Obamacare implemented by the administration. The brief filed on behalf of the House maintains the decision to waive the requirement that employers provide health care coverage isn't expressly called for in the law. It also argues that the $175 billion paid by the Treasury Department to insurers was "an unlawful giveaway" because Congress never approved the money. The brief cites the "power of the purse" assigned to Congress under the U.S. Constitution. (Walsh, 5/27)

Obamacare is once again on its way to court. This week a federal district judge in Washington, D.C., is scheduled to consider a legal challenge from House Republicans who say that President Obama overstepped his executive authority in implementing major provisions of the health care law. (Ehley, 5/27)

The House of Representatives lawsuit challenging President Barack Obama for overstepping his executive authority in implementing the health care law faces its first key test Thursday, when a federal judge in Washington will consider whether the GOP lawmakers have a right to bring the case. (Mershon, 5/27)