Donald Trump holds a seven-point lead over Ted Cruz in a new California Field Poll, but his support in Southern California is a mixed bag - as the Republican frontrunner faces a large deficit in Los Angeles County while drawing broad support in surrounding Orange, Riverside and San Bernardino counties. The Field Research Corporation poll released Thursday shows Trump holding 39 percent of the support among Republicans identified as likely voters in the June 7 primary, while the Texas senator has the backing of 32 percent. Ohio Gov. John Kasich trailed both with 18 percent, while 11 percent remained undecided....