Here is a breakdown of Democrats' over performance tonight in all 4 contested special elections:

SC #HD99: D+13.08%
WI #AD58: D+24.90%
WI #SD10: D+27.52%
IA #HD06: D+20.44%

That is an average Dem over performance tonight of D+21.49%

That's... significant.

— Aaron Booth (@ActorAaronBooth) January 17, 2018