Ken Martin, the new DNC chairman, has been promising an election postmortem since he began the role in February. So far, his time has been marked by petty infighting and chaos — most notably over whether David Hogg, the mass shooting survivor and gun control activist, should be allowed to serve as a DNC vice chair while leading a Super PAC pledging to primary ineffective Democrats. (Hogg left the DNC last month.)

Not a good start, Boris!