nprnews_____ = ||| lubuntu at wor3|||Sanders’ And Biden’s Attempts At Unity May Be Tested Monday||| kickerpage = |||no kicker pagenpr for NPRNEWS||| summarynpr = |||Since Sen. Bernie Sanders endorsed former Vice President Joe Biden in April, their ongoing political relationship has centered around the creation of a handful of task forces meant to bring the Biden platform further to the left and entice Sanders supporters to back Biden in November.