Did Democrats Put Him Over The Top?

A reader writes:

I live in the 7th District in Virginia, and I am a Democrat who voted for David Brat in the open primary. There has been a whisper campaign going on among the Democrats in the district for the last few weeks and it resulted in many Democrats coming out to vote for Brat. We felt especially encouraged after the 7th District committee nominated Jack Trammell to be the Democratic candidate for the seat last Sunday. We now feel we at least have a fair chance at winning it. (By the way, Jack Trammell is a professor at the same small college as Brat, Randolph-Macon.)

Well, not quite the Democrats of Mickey’s dreams, I guess. Update from a reader:

Here’s a theory to support your reader who, though a Democrat, voted for Brat: in 2012, roughly 47,000 people voted in the 7th District Republican primary. This time, roughly 65,000.  Now let’s assume that of those 18,000 new voters, 16,000 were Democrats voting to axe Cantor, then rework the numbers if they hadn’t voted: Cantor would then have had around 29,000+ votes, and Brat would have had around 20,000+.  Which would have worked out to approximately 59% for Cantor, which is where he was at in 2012 and much closer to his internal polling showing him with a lead of 34% among likely REPUBLICAN voters.

I’m thinking time will show that Democrats in his district were fed up with him, and decided to do something about it.

A subsequent Dish update here throws cold water on the theory.