Former GOP New Jersey Gov. Christie Whitman says if Donald Trump is the party's presidential nominee, she'll vote for Democratic contender Hillary Clinton,The two-term Whitman, a longtime moderate Republican, announced Friday she was backing longshot presidential candidate Ohio Gov. John Kasich,But she tells columnist Tom Moran she'd jump the party ship if Trump winds up as the Republican nominee — and claims she won't be alone."You'll see a lot of Republicans do that," Whitman said, Moran writes. "We don't want to. But I know I won't vote for Trump."Whitman tells Moran the last straw was current governor — and GOP presidential primary dropout —"I am ashamed that Christie would endorse anyone who has employed the kind of hate mongering and racism that Trump has," she tells Moran. "I would have thought being from a diverse state would have given him more awareness and compassion."