President Donald Trump on Tuesday accused Russian President Vladimir Putin of “playing with fire,” as Moscow continues battering Ukraine in the face of Trump’s attempts to broker a peace deal to end the war.

Trump's broadside on Putin comes as the Vatican again said it was open to hosting peace negotiations. That's after direct talks between Russian and Ukrainian teams failed to produce a clear breakthrough.

President Trump warned Tuesday that Russian President Vladimir Putin is “playing with fire” — days after he called the dictator “absolutely crazy” over repeated aerial attacks against Ukraine. “What Vladimir Putin doesn’t realize is that if it weren’t for me,