MARCO RUBIO ADMITS: U.S. dominance of the world IS OVER!

MARCO RUBIO ADMITS: U.S. dominance of the world IS OVER!
Marco Rubio, the U.S. Secretary of State, recently made a shocking admission: that U.S. dominance is over, and we now live in a multipolar world.
So is the U.S. really giving up on its role as the world hegemon?