AP has Ginaforte blowing it out in Yellowstone County 56%-37% with about half that county in. In 2016 Ginaforte only won it 49%-48%. Either Dem precints in that county are largely out or Ginaforte is doing hugely better there this time.
YELLOWSTONE COUNTY
PRECINCTS FULLY: 0 / 132 | PARTIALLY: 132 / 132
GREG GIANFORTE 56% 27,272
ROB QUIST 36% 17,681
MARK L WICKS 6% 3,321
TOTAL VOTES 48,274
http://mtelectionresults.gov/resultsSW.aspx?type=FED&map=CTY