![](http://www.ncec.org/images/state/ca108.jpg)
![](http://www.sen.ca.gov/ftp/SEN/cngplan/CNGMAPS/MAP49_300.JPG)
The seat that Issa represents gave 58% of the vote to Bush in 2000 and only 38.8% of the vote to Gore, with 2.7% going to Nader.
Republicans have 135,769 voters to the Democrats' 85,746 voters in the seat. That's roughly a 50,000 vote deficit to make up.
No Democrat is going to win this seat. Even if the candidate you mention were to win the seat, which would be a miracle, he would probably lose it the next cycle.
Issa is not going to lose this seat no matter to a Democrat. Maybe if a primary challenge emerges he might lose there. But any chance to get rid of him will be in the GOP primary.
The General Election will just be a formality. The Democratic Party of CA is better off spending money in more compelling races.