Gov. Jerry Brown has called a special election for May 3 to fill the vacant 4th Assembly District seat.
Candidates to replace Roseville Republican Ted Gaines, who was elected to the Senate last week, will first vie in a top-two style primary on March 8. If no candidate wins 50 percent of the vote, the two top vote-getters, regardless of party, will go head to head in a runoff May 3.
Republicans John Allard, a Roseville city councilman, and Michael Babich, a businessman who lost a primary contest to GOP Rep. Tom McClintock, and Democrat Dennis J. Campanale, who ran against Gaines in November, have announced their candidacies. Republican Beth Gaines, Ted Gaines' wife, is also expected to run.
Republicans have a substantial registration advantage in the district, which covers Alpine and parts of Placer, El Dorado and Sacramento counties.
The AD 4 primary contest will be the fourth special election this year to fill a legislative vacancy.