President Obama will be joined by Gabby Giffords in the Oval Office today when he signs the Arizona representative's last piece of legislation.

The Ultralight Aircraft Smuggling Prevention Act of 2012, which gives law enforcement broader authority to counter illicit drug trafficking on U.S. borders, was the last bill that Giffords sponsored in the House.

Giffords, who is retiring to focus on her ongoing recovery from last year's assassination attempt in Tucson, will be joined by her husband, retired astronaut Mark Kelly. Vice President Joe Biden will also attend the signing.

The president will attend a closed-press campaign event in Washington later this afternoon.