Not that I care (not an Issa fan) but Congressman Issa has endorsed former Congressman Brian Bilbray for the 50th. He would bring some seniority with him back to the House. Brian's always seemed shady to me. He'll be attacked on the right for his "support" of homosexuals which was (probably) a political move since his old district included San Diego's traditionally gay area.
It's very early in the process but I still like State Senator Bill Morrow. Ex-Marine (JAG officer) fought and won against the Carlsbad school district to hold a public forum on the illegal immigration crisis last year.
(I'm in the 50th district.)
The problem with Morrow is that he ran a scurrilous and disgusting campaign to get elected to the California Assembly in my district via late and false and defamatory hit mailers. I will never forgive or forget. But I don't live in the subject congressional district.
Morrow and Issa ran against each other for Congress and Morrow basically came out and said that Issa was working with Hezbollah.
History Lesson
Morrow doesn't live in the district. Remember, he ran against Issa for Issa's congressional seat and lost. He's a constituent of the now current Congressman Darrell Issa. I don't think the voters are going to vote for a guy who is shopping around for congressional seats, especially when the current one he's seeking he doesn't even live in.