Enough to make them a permanent majority in the US Senate. Otherwise nobody would give this a second thought. Sandy Fluke might make it back to Wash DC sooner than I thought....
I am not so sure. 2 become 12 senators, 10 additional. Of those the Orange, Red and Blue areas might be GOP and the Purple would be Purple... Only thing is the Los Angeles and Orange county line would be a state line, which would make things interesting as I live two blocks on the LA side of that state line and it runs between two houses.