If we are going to have any improvement in U.S.-Russia relations - which I think should be an objective of the United States - we don't want to stay where we are. We'd like for this to be more constructive. Then we're going to have to see progress on Ukraine.

I think in Russia's case, they want to have a Ukraine that is pro-Russian, Russia-friendly, a government they can work with. And yet, by invading the country and taking part of the territory, they've produced a more nationalist, more Western-oriented, more unified Ukraine than ever existed before.

We shouldn't be lowering standards for NATO membership; we have to insist on democracy, reform, market economy, anti-corruption, reformed military, contributions to common security, interoperability - all the things that the Czechs had to do, the Poles had to do - they're still on the table. Which means that Ukraine is a long way away from getting to that point.

I actually think that the Russians are exploring the idea: Is it worth ending this conflict in the Donbass in eastern Ukraine, creating peace, getting out, and what would that look like? I don't think they're committed to it yet; I don't think they've made a decision one way or the other - but I think they're exploring it.

I care about Ukraine's success as a country; I'd like to see the conflict resolved. I'd like to see us getting back to the idea we - you know, over many, many administrations, starting with George H.W. Bush and onward, we talked about a Europe whole, free and at peace. That we're looking to promote democratic societies, prosperous, market-driven societies and security for everybody, indivisible, including Russia. And we have never gotten there.

People want strength. They want American values. They want American interests. They want to be successful. And I'd say that's on both sides of the aisle, as well as any divisions even on the Republican side.

If we are going to have any improvement in U.S.-Russia relations - which I think should be an objective of the United States - we don't want to stay where we are. We'd like for this to be more constructive. Then we're going to have to see progress on Ukraine.