Sullivan teases what deal with Russia could look like, but warns if they invade Ukraine ‘we’re ready for that'

National security adviser Jake Sullivan said U.S. is prepared for multiple scenarios involving Russia and Ukraine, and outlined what a possible deal with Moscow could look like.

"We're prepared, alongside our allies and partners, to negotiate issues of mutual concern when it comes to European security," Sullivan said. "And yes, that would include reciprocal limitations on the placement of offensive missiles, it would include greater transparency measures, it would include mechanisms to reduce the possibility of mistake or escalation if there are incidents at sea or in the air. We're prepared to do all of that, just as we have been over the course of the past decades in the Cold War and after."