The Emerson College poll of likely Garden State voters showed Trump’s job approval rating at 41%, while Murphy managed just a 35% approval rating. “Both President Trump and Governor Murphy are underwater among Jersey voters,” Emerson College Polling executive director Spencer Kimball said in a statement. Trump’s approval rating is higher than New Jersey Gov. President Trump’s job approval rating in New Jersey was 41% in a new poll. The Emerson College/PIX11/The Hill poll surveyed 935 likely New Jersey voters Sept. 22-23 with a crediblity interval of plus-or-minus 3.1 percentage points.