If you look at the official Placer County election site it shows McClintock winning by 2,000+ votes as of this morning..
http://electiontracker.placerelections.com/election-choose.aspx
That is just in Placer County. The district has 7 full counties and portions of two others. El Dorado, Placer, Nevada, Sierra, Plumas, Lassen, and Modoc, and parts of Butte and Sacramento.
You understand, of course, that those are only Placer County votes and not the entire district, right? (and not all the Placer votes, either)