CNN covers Arseniy Yatsenyuk's address at the Atlantic Council:

"We need to start a nationwide dialogue on the autonomy of Crimea," Yatsenyuk said at an Atlantic Council speech in Washington, D.C..

But he added that there are no legal grounds for Sunday's referendum -- a referendum that he and the West see as a rogue act backed by pro-Russian thugs and a show of brute and unprovoked military force.

"This is an illegitimate, unconstitutional referendum," Yatsenyuk said, echoing the talking points heard from the corridors of power in London, Brussels and Berlin.

RELATED CONTENT