The New Jersey State House in Trenton dates back to the 1700s, and some sections of the building haven’t been renovated since the 1950s. Gov. Chris Christie and members of his administration have been warning since late last year that conditions in the building have deteriorated so much that they pose a risk to the safety of state employees and visitors. To remedy the danger and dilapidation, Christie has proposed spending $300 million on a major renovation project. And he wants to borrow the money through the state Economic Development Authority, meaning the project won’t require authorization from lawmakers or approval from New Jersey voters.