AD15 list expands. Again.

And then there were seven.

Granada High School Principal Chris Van Schaack of Livermore has filed to run as a Democrat in Assembly District 15 as the open seat in this politically competitive district continues to attract a plethora of candidates.

Incumbent Guy Houston, R-Livermore, will term out in 2008.

Van Schaack, 44, has been an educator for nearly 20 years but now says he’s ready to tackle education issues in Sacramento.

“I’ve had good success here at Granada and truly believe that I can be of great assistance to the legislative body in Sacramento,” he wrote in an e-mail. “Over the last month I’ve been meeting with teachers, nurses, police, fire, and real estate folks in order to better understand their perspective and gather their support.

“And fundraising, of course. Lots of fundraising.”

Van Schaack will join fellow Democrat Terry Coleman of Danville, who ran unsuccessfully in for the seat in 2006. Stevan Thomas, a former primary candidate in the congressional District 11 race, has also said he will run.

Republicans who have either filed or said they will run include San Ramon Mayor Abram Wilson, GOP activist Judy Biviano Lloyd of Dublin, eye doctor Scott Kamena of Livermore and retired CEO Robert Rao, also of Livermore.

Lisa Vorderbrueggen