GARY JOHNSON:

Well, these are treaties that were not ratified by Congress.

These have been presidential treaties, military treaties. We need to involve Congress in all of these decisions, which they have abdicated really to the executive, to the military. Right now, Russia is stretched economically. Do we really want to go in and defend Baltic states against Russian aggression?

Do we really want to go to war over that? I think it's wrong to project what you would or wouldn't do given any situation, because that's kind of drawing a line in the sand. And that's one of the problems with President Obama has had, is he draws lines in the sand that get crossed and then no action.