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.

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

Republicans are going to have to come to the conclusion that there's a political price for standing against 90 percent of their constituents to stand with the gun lobby.

If [lawmakers] lose elections in part because of their votes on the background-check bill or their position on the terror gap bill, then there will be a rethinking of this issue within the Republican conference.

Frankly, when you twin the language of assassination threats with Donald Trump's suggestion that a Hillary Clinton electoral victory would be illegitimate, it scares the hell out of me.

There are all sorts of shades of gray when you're working on economic policy and tax policy and health care policy. There's no gray on this issue, to me. This is a gun lobby that is raging out of control, that doesn't even represent its own members.

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