Like much of the rest of Washington, the supposedly independent National Labor Relations Board has been the scene of bare-knuckled partisan conflict for years now. But the White House may have finally found a way to resolve that: The new board will have no Republicans at all.

With no fanfare, Brian Hayes, the sole remaining Republican serving on it, stepped down Sunday as his term expired. That leaves just three people on the five-member board, which enforces the National Labor Relations Act.