Less than a month until primary Election Day, the newest poll in the race for New Jersey governor shows U.S. Rep. Mikie Sherrill pulling away as the favorite for the Democratic nomination in a crowded and contentious field.

New Jersey voters are four weeks away from making their pick in the state's gubernatorial primary election on June 10. Polls suggest that while one Republican candidate may have a lead, Democrats appear more divided about who they are supporting.

Polling is on his side. So is the U.S. president. But Jack Ciattarelli's chief rival in the Republican gubernatorial primary is on the offensive.