Hey, just kidding.

Republican presidential candidate Donald Trump said Thursday that he was merely being sarcastic when he said that Russia should look into Democratic presidential candidate Hillary Clinton’s missing emails.

But presidential and political scholars say Trump’s remarks are no laughing matter and yet another worrisome example of the man who wants to be president acting very unpresidential.

They say Trump has yet to grasp that words, especially those from an aspiring world leader, can have serious consequences at home and abroad.