Former Congresswoman Gabrielle Giffords is making a push for gun control two years after she was shot in Arizona and Mayor Michael Bloomberg's national gun control group released an ad Tuesday challenging lawmakers to pass legislation as well.
Giffords and her husband have created a political action committee and launched a website called "Americans for Responsible Solutions."
They're calling for efforts to prevent gun violence while promoting responsible gun ownership.
On Jan. 8, 2011, Giffords was almost killed as she was meeting with constituents outside a grocery store near Tucson, Ariz.
The gunman killed 6 people and wounded 13.
He was sentenced to life in prison.
Giffords was forced to resign from Congress to focus on her recovery.
The shooting sparked other gun control advocates into action as well, including the mother of one of the victims who has joined Mayor Bloomberg's national gun control group.
"Twenty heartbroken families lost a child in the Sandy Hook school shooting," Roxanna Green said in an ad for Mayors Against Illegal Guns. "I know how much it hurts."
The new TV ad features Green, the mother of 9-year-old Christina-Taylor Green, who was killed in the Tucson shooting.
It was released Tuesday by Mayors Against Illegal Guns, an organization co-chaired by Bloomberg.
In the ad, Green demands legislators take action to enact stronger gun control.
"I have one question for our political leaders. When will you find the courage to stand up to the gun lobby," she says.
The ad aired in Tucson to coincide with the anniversary of the shooting.
It will also air in Washington, D.C. through Jan. 14 and in other markets where there have been mass shootings.