Video: Emotional President Obama's Full Speech On Gun Control

                                     

President Barack Obama grew emotional Tuesday as he made a passionate call for a national "sense of urgency" to limit gun violence.

He was introduced by Mark Barden, whose son Daniel was killed in the 2012 massacre at Sandy Hook Elementary School in Connecticut. Obama circled back to that shooting in the final moments of his speech.

"Every time I think about those kids, it gets me mad," Obama said, pausing to wipe away tears.

He added: "And by the way, it happens on the streets of Chicago every day," referring to his hometown where he began his political career.

The White House is introducing a new requirement that would expand background checks for buyers. The measure mandates that individuals "in the business of selling firearms" register as licensed gun dealers, effectively narrowing the so-called "gun show loophole," which exempts most small sellers from keeping formal sales records.

Former Congresswoman and gun control advocate Gabby Giffords, who was seriously injured in a 2011 mass shooting, was also in attendance at Tuesday's event and was greeted with a standing ovation from the White House audience.

Obama hammered congressional Republicans for opposing measures like expanded background checks as he called on Americans to punish them at the polls. He defended his actions to strengthen background checks for purchasing guns, answering critics who say the measure would not make it harder for criminals to obtain firearms.

"Each time this comes up, we are fed the excuse that common-sense reforms like background checks might not have stopped the last massacre, or the one before that, or the one before that, so why bother trying," Obama said. "I reject that thinking."

"We know we can't stop every act of violence, every act of evil in the world. But maybe we could try to stop one act of evil, one act of violence," he added. Watch the full video below.