"I'm not going to make judgments now," Biden told reporters in Muscatine, six days before the Iowa caucuses. "I just think that it depends upon how we treat one another between now and the time we have a nominee."
Biden had previously promised to support the Democratic nominee, "regardless" of who it is. At some stops along the campaign trail, Biden has even pledged to "work like hell" to help any of his rivals defeat President Donald Trump.
Yet on the campaign trail. The two men reflect the larger ideological battle between a Democratic establishment in which Biden has spent his career and the progressive left that has surged in influence since Sanders' failed bid for the Democratic presidential nomination in 2016.
Bernie's last statement I know of about supporting the nominee:
"If it's not me, we're going to rally around whoever it may be because we understand that Donald Trump is the most dangerous president, perhaps in the history of this country – and he must be defeated."
EDIT:
Article was updated since posting this thread to be titled "Biden won't say whether Sanders could unify Dems as nominee".
Corrects to reflect that Biden was questioned on whether Sanders could unite the party as nominee, not whether Biden would support Sanders if he's the nominee.
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