I've listened to Republicans say over and over again that we should focus on enforcing the laws that we have. The great hypocrisy of that statement is that they are deliberately handcuffing the enforcement agency that oversees current law.

If we have a president who asked for a mandate on combating gun violence, as Hillary Clinton is requesting, that's going to be really impactful. I will certainly defer to her when it comes to the exact pace and content of legislative action, but I expect it will be at the top of her agenda. It will certainly be at the top of mine.

Living in stressful situations there are chemicals in your brain that are released that essentially degrade the neuron connections that allow you to function as a normal human being.

The anti-gun-violence movement was essentially asleep from 1994 to 2012, and during that time, the gun lobby built up enormous political power.

You have to think not about what you mean but about what people hear.

My career in Congress is a story of before Sandy Hook and after Sandy Hook.

What is happening in Iraq now is awful, but it is a consequence of our invasion, not our withdrawal.