While Menendez's numbers have slipped, President Obama remains stable -- and ahead -- at the top of the ticket. He leads Mitt Romney by nine percentage points, 49 percent to 40 percent; Romney has gained just a single point since February. And if Romney selects Gov. Chris Christie as his running mate, the GOP ticket trails, 49 percent to 42 percent. "This still looks like a reliably blue state," said Carroll. The poll was conducted April 3-9, surveying 1,607 registered voters. The margin of error is plus-or-minus 2.4 percentage points.