Democrats in Split-Screen: The Base Wants It All. The Party Wants to Win.

Mr. Sanders rallied his youthful, often-raucous coalition Saturday night at a gathering named the “People’s Summit,” where supporters hailed him in worshipful language. One Colorado couple hauled a small banner through the hangar-size McCormick Place, pleading with Mr. Sanders, a still-independent Vermont senator, to create a new “People’s Party.” Continue …