ANALYSIS: Bernie Sanders needs to light a fire. But amid his spat with Warren, can he control the blaze?

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Jan 14, 2020 ANALYSIS: Bernie Sanders needs to light a fire. But amid his spat with Warren, can he control the blaze? Sen. Bernie Sanders has stepped up an undeclared war on his top rivals for the Democratic presidential nomination — and left himself open to counterattack — because it's do-or-die time for him. Sanders and his supporters are tangling with Joe Biden over foreign policy, trade and race, and with Sen. Elizabeth Warren over policy purity, elitism and whether he said a woman can't win the White House. The skirmishes rile up Sanders' base at the expense of alienating other Democrats, writes NBC's Jonathan Allen in an analysis.  Read More Get the NBC News Mobile App Follow NBC News Check out all of NBCNEWS Newsletters here. Update Preferences | Unsubscribe | Contact | Privacy Update Preferences Unsubscribe Contact Privacy