The UAW was allowed to use Card Check to try to unionize a small, auto parts shop in Indiana by public ballot. This is how it turned out:
"President Barack Obama supports the bill. An original co-sponsor of the Employee Free Choice Act, Obama urged his Senate colleagues to pass the bill during a 2007 motion to proceed:
"I support this bill because in order to restore a sense of shared prosperity and security, we need to help working Americans exercise their right to organize under a fair and free process and bargain for their fair share of the wealth our country creates."
"I will make it the law of the land when I'm President of the United States", he told a labor federation meeting in April, 2008. While Obama didn't talk about this issue much before general audiences, it was his main promise when he spoke to unions. (source)
The "Freedom of Choice" Act has about as much freedom of choice as the Fairness Doctrine has Fairness...