Michael G. Mullen: “Retrenchment brought about by short-sighted cuts could well lead to costlier and more tragic consequences later.”

I urge you to support and encourage the expansion and deepening of these channels of communication with Russia to enhance the security of the American people and our allies.

These weapons are for war; they are not for sport. Assault weapons are designed to kill as many people as possible in the shortest time possible.

I have to date been reticent to speak out on issues surrounding President Trump's leadership, but we are at an inflection point, and the events of the past weeks have made it impossible to remain silent.

They are not battle spaces to be dominated and must never become so.