Labor representatives watching the returns from AFL-CIO headquarters put down their beer and wine to let out a cheer at news that North Carolina state senator Kay HaganKay HaganGOP senator floats retiring over gridlock 2016’s battle for the Senate: A shifting map The untold stories of the 2016 battle for the Senate MORE, the Democratic challenger, would unseat Sen. Elizabeth Dole, the Republican incumbent. If the projection proves correct, it moves the unions a vote closer to a key priority next session: the Employee Free Choice Act.

That measure is intended to make it easier for unions to organize workers, and the labor movement looks to it as a way to reverse the trend of declining union membership. It would allow workers to join a union by signing a petition, ending the current requirement that secret ballots be cast. Union officials say companies make it difficult to hold votes for union membership.

The bill went down in defeat in the Senate in 2007 when supporters fell nine votes short of the 60 votes needed to stop a filibuster. As Barack ObamaBarack ObamaFor Trump, foreign policy should begin and end with China Harvard spat between Clinton, Trump camps proves Dems can't accept Trump's improving Wrestling mogul McMahon could slam her way into Trump administration MORE and John McCainJohn McCainA Cabinet position for Petraeus; disciplinary actions for Broadwell after affair Meet Trump’s ‘mad dog’ for the Pentagon Wrestling mogul McMahon could slam her way into Trump administration MORE fought it out across the county, business and labor battled over the bill, also referred to as