The New England races on April 26 represent a 'do or die' moment for the Sanders campaign with 384 delegates up for grabs. After falling short in New York by 69 delegates (177-108, Bloomberg's count), he must regain some momentum in order to get back on track for his strategy.
And while it would be nice for his camp to outright win the primary, his first and foremost goal is to win 2,026 pledged delegates.
Why?