Now, to the debate over gun control. This is all in the wake, of course, of that tragedy in newtown, connecticut. Vice president biden will be meeting with law enforcement officials in the first step... See More
Now, to the debate over gun control. This is all in the wake, of course, of that tragedy in newtown, connecticut. Vice president biden will be meeting with law enforcement officials in the first step of a push to end gun violence. The nra is expected to speak out tomorrow in its first news conference since the tragedy. And abc's jake tapper joins us from the white house. You asked the president yesterday in the news conference, where have you been for four years on this issue to eradicate semiautomatic weapons? Reporter: That's right. Vice president biden had written that ban into law in 1994. It expired in 2000. The vice president will be meeting with chiefs of police who support reinstating that ban. And the president will be reaching out to lawmakers to try to come up with post-newtown solutions. President obama had promised the citizens of newtown meaningful action. And in a morning press conference, he explained what that meant. An administration focused on preventing future tragedies by focusing on mental health, culture, education, and gun control. The fact that this problem is complex can no longer be an excuse for doing nothing. The fact that we can't prevent every act of violence doesn't mean we can't steadily reduce the violence and prevent the very worst violence. Reporter: Vice president biden will head the initial effort with a january deadline for specific recommendations. This is not some washington commission. This is a team that has a very specific task, to pull together real reforms, right now. Reporter: The president's already made some demands, calling on congress to ban the sale of high-capacity ammunition clips and what he called military-style assault weapons. And close the so-called gun show loophole that does not require background checks in many private sales. The tragedy at sandy hook elementary appears right now to have been a tipping point, for a national conversation about gun violence, one we've not seen in a long time. They can fire 100 bullets in a minute for people that know what they're doing with them. Reporter: And democrats suggest, something has changed. I'll defend the second amendment to my dying breath. They know I'm a proud owner and a lifetime member of the nra. I've always been. And hope always will be. But I also have a responsibility to speak up and say, listen. Come to the table. I want to hear both sides. Reporter: Of course, one group we have not yet heard from that much, george, are leaders of the republican party who have been so opposed to any regulations on guns in the past. We'll hear from them in the coming days, as well.
This transcript has been automatically generated and may not be 100% accurate.