Despite giving Gov. Chris Christie a 20-point lead over state Sen. Barbara Buono, half of likely voters want Democrats to retain control of the New Jersey Legislature in November, according to a new Rutgers-Eagleton Poll. Only 38 percent want to give Republicans a chance to take charge in Trenton. In another sign that the GOP governor’s legislative coattails seem short, voters say they will choose Democratic candidates for Assembly and Senate seats by double-digit margins. Nearly 50 percent are voting or leaning Democratic for their local Assembly races, while 32 percent support Republicans. Results are similar for state Senate races.