I don't think most folks here realize that there were two elections going on in te 50th district. One a run off to fill out the vacant seat and the other republican and democrat primaries to choose the party nominees for the november elections.
Bilbray is winning the "runoff" and he is also winning the republican primary. Busby is coming in second in the run off and winning the democrat primary.
Theoretically Bilbray could have won the runoff and lost the primary meaning he would be out of a job come December 31.
It's a good sign, I'm thinking, that Bilbray is getting over 50% in both races.