Donald Trump is looking beyond the convention, the fall campaign and election itself to begin to plan for a massive takeover affecting 4 million employees: the governing stage.

In a new role, New Jersey Gov. Chris Christie will serve as chairman to assemble a transition team of experts on domestic and foreign policy to begin the organizational architecture for a future Trump administration.

Christie’s team will conduct a search for candidates to fill top cabinet level positions and the roughly 1,000 executive branch job openings that require Senate confirmation.

The executive branch employs roughly 4 million federal workers.

Under the law, a presidential transition team is a separate organization from the campaign.

Sources close to Christie describe this new position as further evidence of how the governor is trying to bring both substance and seriousness to the campaign behind the scenes.

Sources familiar with the planning say the transition team appointment shows “the role the governor is playing as the serious person around Trump who is trying to provide some discipline” to his growing organization.

Christie also continues to act as “a conduit between the establishment and Trump” based on Christie’s relationships with Republican elected officials across the country, sources said.

This article originally appeared on NBCNews.com.