SAN FRANCISCO (AP) — New Jersey Gov. Chris Christie said Friday that Republicans will unite behind Neel Kashkari, California’s GOP nominee for governor, after a divisive primary against a tea party favorite but also said he has “work to do” to attract national fundraising for his long-shot bid.

Christie, chairman of the Republican Governors Association and a potential 2016 presidential candidate, appeared with Kashkari, a former U.S. Treasury official, at a flower warehouse in the liberal stronghold of San Francisco before heading to a $10,000-a-plate fundraiser for the association.