Steven Greenhouse writes in the New York Times that the National Labor Relations Board plans to proceed with lawsuits against two of the four states it threatened earlier this year over state constitutional amendments to ban union recognition by card-check.  On January 14, 2011, Acting General Counsel Lafe Solomon advised the Attorneys General of Arizona, South Carolina, South Dakota and Utah that the National Labor Relations Act preempts constitutional amendments to require the use of secret ballots in union representation elections.  In response the states argued that the amendments support the current federal law and did not disrupt the federal regulatory scheme.  

In February, the Acting General Counsel replied to the states indicating that the Board would refrain from bringing suit while they discussed whether they could resolve the issue "without the necessity of costly litigation."  Now, Greenhouse reports the Board has indicated it will soon file federal lawsuits against Arizona and South Dakota seeking to invalidate the amendments: 

In a letter sent on Friday, the labor board told those states that it would invoke the United States Constitution’s supremacy clause in asserting that the state constitutional amendments conflict with federal laws and are pre-empted by those laws. One federal official said the lawsuits would be filed in the next few days.

The Board has suggested it might proceed against the other two states at a later date.  Greenhouse includes reaction from Arizona and South Dakota to the announcement: 

In an interview, Tom Horne, Arizona’s attorney general, criticized the board’s planned suit, saying, “I find it shocking that they do not believe in the fundamental principle of democracy that people have a right to a secret ballot.” He said that while federal pre-emption might apply to laws passed by Congress, it should not apply to the labor board’s decision allowing card check to be used in some unionization campaigns.

South Dakota’s attorney general, Marty J. Jackley, said he respectfully disagreed with the board’s analysis, adding that he did not believe the agency “has the authority under circumstances like this to sue a state.”

At a February 11, 2011 hearing before the House Committee on Education and the Workforce, several witnesses indicated that any preemption dispute over this issue could be resolved by Congressional action on the Secret Ballot Protection Act.  That Act, which would require secret ballot elections in federal union representation proceedings, was introduced by Senator Jim DeMint (R-SC) on January 27, 2011 and Rep. Phil Roe (R-TN) on March 15, 2011.