Yes, he or she can. You people just gotta get your head out of the sand and stop promoting RINOs and believing in self-fulfilling prophecies. How come there have been more Republican Governors than Democrats in CA? Answer that smarty pants...
Come down to reality and look at the CA Demographics:
CALIFORNIA VOTER AND PARTY PROFILES
http://www.ppic.org/content/pubs/JTF_VoterProfilesJTF.pdf
"The Democratic Party currently has an advantage of 1.4 million voters over the Republican Party (7.1 million to 5.7 million) or 9 percentage points (43% to 34%), according to the Secretary of State.
Among those most likely to vote in this year’s elections, Democrats outnumber Republicans by a 7-point margin (44% to 37%), while 15 percent of likely voters are registered as independents.
... the fact that independents are more likely to lean toward Democrats than Republicans (42% to 28%) tends to work to the disadvantage of the GOP in statewide elections."