Donald Trump's world and his ties to Germany, Scotland, Slovenia and more

(CNN)World leaders tend to stay out of U.S. presidential elections; they rarely comment on candidates yet even to receive their party's nomination.

But previous elections didn't feature Donald Trump, the man who during a presidential debate made an impassioned defense of his penis.
Mexican President Enrique Pena Nieto has said of Trump's campaign tactics: "That's how Mussolini got in, that's how Hitler got in."
British Prime Minister David Cameron denounced Trump's suggestion of a ban on Muslims entering the United States as "divisive, stupid and wrong."
    On the plus side, Russian President Vladimir Putin called Trump "an outstanding and talented personality."