For those who thought that the lawsuits challenging the Patient Protection and Affordable Care Act (Obamacare) were at an end, think again. On September 9, Judge Rosemary Collyer of the federal district court for the District of Columbia refused to dismiss a lawsuit filed by the entire U.S. House of Representatives against the Obama administration over its funding of certain aspects of Obamacare.

This is a historic lawsuit and a historic decision. In the past, individual members of Congress have filed a number of (unsuccessful) lawsuits against sitting administrations. But this is one of the few occasions when such a suit has been pursued by the entire House of Representatives as an institution.

Adopted on July 30, 2014, House Resolution 676 authorized the speaker to file suit. On January 6, 2015, the House in the new 114th Congress adopted HR 5, authorizing itself to succeed the 113thHouse as a plaintiff in the lawsuit.