Gov. Chris Sununu (R-NH) said supporting former New Jersey Gov. Chris Christie‘s presidential ambitions will only help Republican front-runner Donald Trump secure the nomination.

Sununu endorsed former United Nations Ambassador Nikki Haley last month, denying Gov. Ron DeSantis (R-FL) his support in the early-voting state. Sununu, who has warned that a second Trump term would come with chaos, is now pushing for a smaller field of Republican hopefuls.