Blakes7 saidAs if any of you supported Eric Cantor...
Virginia is an "open" primary State, in which non-Republican registered and unregistered district residents can vote. There may have been some Democratic & Independent crossover voting, to sabotage Cantor for his own sabotaging of numerous Obama legislative initiatives, and being the principle orchestrator of the "Party of No" in Congress.
Of course the Teabagger winner Brat is worse politically than Cantor, but revenge is revenge. On the other hand Brat may not be as effective in Congress as Cantor (it's assumed no Democratic will win in November in that solid Republican district, leaving that House seat in Republican hands in any case), and could add to House Republican in-fighting and disarray.
Not to mention denying Cantor becoming Speaker of the House when Boehner retires (or is ousted) as is expected. Cantor was the strongest candidate to replace Boehner; now the field is wide open for filling the Republican Majority Leader position, the second ranking Republican in the House (or top position when a Democrat is House Speaker).
I haven't heard an analysis yet of who voted in this primary, but it should be interesting. With an upset like this it's likely to be examined under a microscope to see exactly what happened. Among the reasons why Republican and Teabagger voters chose as they did appears to be Brat's misrepresentation of Cantor's stance on immigration reform, and typical low Virginia turnout.
Which kept complacent Cantor Republicans at home and brought more energized Brat Teabaggers to the polls. Cantor may have actually hurt himself by claiming a huge lead going into the election, causing voters who might have supported him to think: "Why bother to go out, Cantor already has this thing won."