It has been discussed by you and by us the fact that we have had differences with Russia on Syria.

WHITEHOUSE: Press Briefing

And this is all part of a cooperative relationship that we need to have, and we have had, despite our differences in the past, and we think we will continue to have going into the future.

WHITEHOUSE: Press Briefing

We had differences of opinion and we still do have differences of opinion.

CNN: AllPolitics - Ethics Transcript