When President Barack Obama gives his State of the Union address on Tuesday night, gun violence will be center stage, both literally and politically.

The White House and Democratic lawmakers have invited more than 30 shooting victims or their surviving family members and friends to attend Obama’s speech, including several people tied to the shooting at Sandy Hook Elementary School in Newtown, Conn. Former Rep. Gabrielle Giffords (D-Ariz.), severely wounded in a Jan. 2011 shooting, will be there. And first lady Michelle Obama will be accompanied by the parents of Hadiya Pendleton, a 15-year-old Chicago teenager shot to death last month, shortly after she took part in the inaugural parade.