Answer: dnc

AnswerCrossword Clue
DNCBarney Frank spoke at it in 2012: Abbr.
DNCTim Kaine's grp.
DNCReady for Hillary org.
DNCPol. platform-promoting org.
DNCParty org.
DNCCampaigners on the left (abbr.)
DNCCaucus organizer: Abbr.
DNCOrg. once led by Howard Dean
DNCIt nominated LBJ in '64
DNCLeadership org. opposed to the G.O.P.
DNCThey'll meet in Denver in 2008: Abbr.
DNCObama's org.
DNCOrg. for leading donkeys
DNCBlues org.?
DNCBlues group?: Abbr.
DNCParty org. once chaired by Tim Kaine