The president made a recent campaign swing to New Jersey where the state's incumbent Democratic governor, John Corzine,is locked in a tight race with Republican candidate Chris Christie and independent contender Chris Dagget.

VOA: standard.2009.10.23

This strikes me as the most plausible contender for an argument like this.

我认为对这论据最好的解释。

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But for our purposes, I think it's not a contender.

但就我们的目标而言,它与我们讨论的话题并不相关

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