Vice President Biden has made sure to keep the door wedged open for a possible 2016 run, but it looks less likely by the day that he will walk through it.
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The dynamic has nothing to do with any diminished appetite on Biden’s part for the top job — and a lot more to do with one other contender.
Hillary Clinton appears increasingly certain to run in 2016. Many observers, even those sympathetic to Biden, fear that a race against the former secretary of State would be fruitless at best and humiliating at worst for the famously-proud veep.