WASHINGTON (AP) — Senate Republicans on Monday blocked President Barack Obama’s nomination of Robert L. Wilkins to a key appellate court, continuing a nomination fight that has stoked partisan tensions in the Senate.

Wilkins, a District Court judge in Washington who in 2010 was confirmed by the Senate on a voice vote, was nominated to fill one of three vacancies on the U.S. Court of Appeals for the District of Columbia Circuit. He is the third straight nominee to the powerful court that Republicans have stopped from being seated.