The Supreme Court has ruled President Obama exceeded his power under the Constitution by filling federal positions when the Senate was on a brief break.

But the narrow ruling also preserved the president’s power to make recess appointments in general.

While the president is authorized to fill “vacancies” while the Senate is on “recess,” the justices decided in a 9-0 ruling that the Senate was not on a true recess in January 2012 when Obama filled three seats on the National Labor Relations Board.

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