Here are 7 notable quotes about the proposals:
1. Vice President Joe Biden
"I have no illusions about what we're up against or how hard the task is in front of us. ... We should do as much as we can, as quickly as we can. And we cannot let the perfect be the enemy of the good."
2. National Rifle Association
"Attacking firearms and ignoring children is not a solution to the crisis we face as a nation. Only honest, law-abiding gun owners will be affected and our children will remain vulnerable to the inevitability of more tragedy."
3. Dan Gross, president of the Brady Campaign to Prevent Gun Violence
"There's an extraordinary disconnect between what the American public wants - including gun owners and NRA members - and what our elected officials are doing about it."
4. Sen. Marco Rubio, R-Fla.
"Nothing the president is proposing would have stopped the massacre at Sandy Hook. ... Rather than sweeping measures that make it harder for responsible, law-abiding citizens to purchase firearms, we should focus on the root causes of gun violence and keep guns out of the hands of criminals and the mentally ill."
5. New York City Police Commissioner Raymond Kelly
"We know we're not going to eliminate all gun violence, but certainly diminish the possibility of having another Newtown. ... I believe all the major law enforcement organizations will support the administration. So this is a good day."
6. Sen. Lindsey Graham, R-S.C.
"The recent tragedy at Sandy Hook Elementary School is heartbreaking and beyond words. However, the gun control plans brought forward by President Obama fail to address the real issues and I'm confident there will be bipartisan opposition to his proposal."
7. E. Patricia Llodra, first selectwoman of Newtown, Conn.
"I truly believe that the will of the people makes a difference, and I'm calling on everyone to have the courage to stand up and help us make that difference. We should never again visit a tragedy such as we had in Newtown, Conn. It's time for us to make a change."
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