"The board respectfully disagrees with the decision and believes the president's position in the matter will ultimately be upheld," said NLRB Chairman Mark Pearce.
The ruling in early January disappointed the coalition of seven public worker unions who had challenged Walker's law in court.
The Air Traffic Controllers are pushing the Senate to confirm a new permanent chief of the Federal Aviation Administration, Michael Huerta, saying he's been acting administrator long enough.
Unions are on full mobilization status as they rev up their final push in the 2012 election battle.
On the day of the second debate between President Obama and his Republican challenger, Bain Capital workers step up efforts to expose Mitt Romney's role in the outsourcing of their jobs.
Call it the battle of dueling mailers, with Republican presidential nominee Mitt Romney in one corner and the nation's unions, represented by the AFL-CIO, in the other.
A regional vice president of the UMWA has condemned a new Republican TV ad airing in coal country because it features a coal executive masquerading as a miner.
The tea party has taken over the Republican Party and produced "craziness" there and is responsible for the "tremendous war on workers" now being waged nationwide, Teamsters President James Hoffa says.
On the third day of the GOP convention, AFL-CIO marchers painted a picture of what would be a nightmare scenario in America if Mitt Romney were to be elected president.