One of Mickey Kaus' readers trashes SEIU chief Andy Stern's underwhelming defense of "card check" in a bloggingheads.tv discussion with former Secretary of Labor Robert Reich:

His substantive problem is that he assumes the conclusion, which is that workers need and want unions. Anything that interferes with that is therefore by definition wrong and is contrary to their will or at least to their best interests. If workers vote a union down it must be because they were intimidated, because a negative vote like that would be like a man voting against eating. It would be unnatural and open to suspicion. Stern could not stand up to a good interviewer for five minutes. Even Reich knew he was not responding to the question and was unconvincing - which is saying plenty.

One of the good things about bloggingheads is that if you can't make your case there you can't make it anywhere. You have the time, you have a non-disrespectful, non-cross-examining interlocutor, you're in familiar surroundings and don't have distractions.

Kaus, a frequent critic of EFCA, continues:

In the process Stern dances around the issue of taking away the secret ballot, saying the issue is "whose choice about how to form the organization is this, the employers or the workers." No, the issue is how do you determine what the workers' choice is. If Stern wants to have a secret ballot about whether to have a secret ballot, then he'd be amending the labor law to give workers the choice he says he wants to give them. (Maybe that's not a bad compromise.) ...

Additional sources comment further.  Powerline blog notes how unimpressed even a sympathetic Reich is, while questioning his argument as well:

Recognizing the futility of Stern's argument, Reich relies on the assumption that employer coercion is rampant, an assumption he fails to support. In any case, such coercion is unlawful and an appartus, the National Labor Relations Board, exists to enforce the prohibition. If the NLRB is inadequate under current law, the answer (as Reich at one point seems to recognize) is to beef it up. And Reich simply ignores the obvious prospect that unions will use coercion to obtain card signatures.