WASHINGTON -

The person Gov. Chris Christie chose to temporarily fill a vacancy in the U.S. Senate said he's doing more than keeping the seat warm.

Sen. Jeffrey Chiesa gave his first speech on the Senate floor on Tuesday.

In the 10-minute address broadcast live on CSPAN-2, Chiesa talked about the toll human trafficking takes on victims and society. He urged lawmakers to enact legislation to close loopholes that enable young women to be kept in bondage.

Chiesa has led efforts to combat trafficking as an assistant U.S. attorney and New Jersey attorney general. He will serve until a newly elected senator takes the seat in October.

In his address, Chiesa joked that his maiden speech and farewell address would be one in the same if he had waited longer to speak.