What should we expect from President Trump at the NATO Summit?

Well, the hope is that he stays on script, thanks other European countries for contributing more to NATO. The worry is that he gets mad at Emmanuel Macron, that he gets involved in U.K. politics, and it all goes off the rails. We'll wait and see.

What impact will the new Brazilian and our Argentinean steel tariffs have on the U.S. economy?

Well, not that huge an impact, but they'll certainly make steel more expensive and manufacturers won't like that. The larger question is, is Trump really trying to wind down the trade wars or is he just going to ratchet them back up? Something that certainly worries markets.

What advantage does the White House get from not taking part in impeachment hearings this week?

Well, their whole argument is that the whole thing is illegitimate from the start and that by sending anybody, they would be legitimizing these hearings. So, they're trying to rise above the fray, and they'll wait for any Senate trial to mount a defense ahead of what they expect would be an acquittal.

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