TRENTON — Some of the biggest names in the national Democratic Party are headed to New Jersey to campaign for Democrat Phil Murphy in the final few weeks before voters pick who will succeed Chris Christie as governor.

The list includes former vice presidents Joe Biden and Al Gore, former U.S. Secretary of State John Kerry, former U.S. Attorney General Eric Holder, and current Democratic National Committee Chairman Tom Perez.

But it does not include a planned appearance by former President Barack Obama.

Murphy’s campaign said last month that Obama would host an event sometime this fall for Murphy, who served as U.S. ambassador to Germany under Obama from 2009 to 2013. But details are still not available, said Daniel Bryan, a spokesman for the campaign.