Like many American leaders before him, US President Donald Trump is finding out that getting through to Russian President Vladimir Putin is not as easy as he might have thought.

President Donald Trump took aim at Russian President Vladimir Putin on Saturday in a Truth Social post about the ongoing war in Ukraine, saying that the Kremlin leader may need to "be dealt with differently.

Heads of state and government are typically called Mr. President or Madam Prime Minister. So when President Donald Trump used a post Thursday on his social media site to speak directly to Russia's president,