Trump continues to hold onto a slim lead in GOP California primary polls

Source:  Real Clear Politics

Other state polls:
Trump all but untouchable in New York GOP Presidential primary polls.  (3/31/2016)
Cruz makes a move on Trump in California; Kasich languishes.  (3/28/2016)
Latest GOP Pennsylvania primary poll shows tight race between Trump and Kasich.  (3/24/2016)
Everybody gets a boost in latest Arizona presidential primary poll.  (3/22/2016)
Chris Christie no favorite son in New Jersey; Donald Trump rules for now.  (11/18/2015)