Members of the Laborers’ International Union of North America gather outside prior to the hearing. They were among the majority in support of the Keystone XL pipeline.

A crowd of about 500, mostly proponents, testified before a U.S. State Department representative on the controversial TransCanada Keystone XL pipeline Tuesday evening.

The State Department held hearings last week in states where the 1,660-mile pipeline will cross to determine whether issuing a Presidential Permit is of national interest.

The Glendive hearing attracted union workers and laborers in favor of the 20,000 proposed jobs TransCanada says the project will bring and many who touted energy security.