President Barack Obama told Jay-Z he was worried the rapper's controversial trip to Cuba would cost him the White House ... this according to Jay-Z.

Hova just released a new rap, in which he addresses all of the drama surrounding his trip to Cuba last week with his wife Beyonce.

In the song, titled "Open Letter," Jay says ..."Politicians never did s**t for me ... except lie to me, distort history.”
He continues, "Obama said chill ‘You gonna get me impeached' ... We don’t need this s**t anyway chill with me on the beach.'" (source: olekubuzz.blogspot.com)