I think that in CA, they might draw Darrell Issa into some Mexican neighborhoods.
The geography of the state cannot sink Issa unfortunately. He inhabits one of the most GOP zones in the state, even more GOP than my little coastal gold coast Orange County CD. His CD just has a major military cast to it, as it hugs Camp Pendleton. Marines and their significant others, and friends, and those who service them, just don't vote Dem.
Why don't you like Issa Torie? He seems like a pretty reasonable Representative considering some of the other members of the California GOP delegation (Calvert, Herger, Lungren, Drier, and Lewis).