Third Democrat challenges Issa, second Republican running against Rohrabacher

The Buzz is the Register’s weekly political news column.
With two strong Democrats already challenging the reelection bid of nine-term Rep. Darrell Issa, R-Vista, it’s natural to wonder why real estate investor Paul Kerr decided to jump in as well.
First in the race was Doug Applegate. The attorney and retired Marine colonel stunned political analysts and help rewrite the campaign calculus for Republican-held congressional seats in Southern California when he came within 0.6 percenta