A Russian drone struck an apartment building in a city in southeastern Ukraine, one day after President Trump rebuked Russia's leader.

President Trump also sought to divert blame should negotiations fall apart, a sign that he is perhaps more pessimistic about a deal than he was when he took office in January.

Imposing a deadline on a negotiation for a deal you desperately want is a risky tactic if your only move is to walk away from a deal you desperately want.