Trump isn't the first US President to get a North Korean invite. But he's the first to accept.

No US president has agreed to sit down with a North Korean leader -- until now.
Just by showing up to see Kim Jong-Un, Donald Trump would give his murderous dynasty what it has always craved -- the prestige and propaganda coup of a meeting of equals with the President of the United States.
That is why the talks represent such a massive gamble for Trump and will subject him to intense pressure to deliver a significant breakthrough in return toward the US goal of dismantling North Korea's nuclear arsenal.

Source: Edition.Cnn