The campaign for common sense gun safety in the United States picked up significant steam on Tuesday.

Two years to the day after she was critically wounded in a mass shooting in Tucson, Arizona, former Rep. Gabrielle Giffords launched a new campaign to counter the power and money of gun lobby groups like the National Rifle Association of America (NRA).

Giffords and her husband, former astronaut Mark Kelly, met last week with victims of the Dec. 14 massacre at Sandy Hook Elementary School in Newtown, Connecticut, where 20 young children and six educators were killed by a deranged gunman.

In addition, Mayors Against Illegal Guns (MAIG), headed by New York City’s Mayor Michael Bloomberg, is out with a powerful new ad featuring Roxanna Green, mother of Christina-Taylor Green. She was the youngest victim killed in the Tucson shooting.