Okay, let’s get this correct...
CA-10 has a Cook’s rating of D+18, the seat was last Republican in 1994 when it was covering certain parts of Contra Costa county...aka Wackosville, and it includes a major government facility with the Livermore Laboratory.
And there’s this David Harmer guy who is running, who seems to be a libertarian republican in a largely blue district against a bunch of left wing yahoos more extreme in thought than Tauscher...
Something tells me that CA-10 is not going to be going anywhere.
CA#10 has a Cook PVI rating of D+11
it is a special election. Perhaps you have some expertise on special elections.
Why is Harmer considered libertarian?