CNN Calls it a Coup

Venezuela has entered a new phase in its standoff between the forces of Maduro and Juan Guaido .  CNN is calling this a coup, phrasing the actions of the elected leader as a overthrow of the dictator.  Sometimes I think CNN is AT&T's worst nightmare.  The President of AT&T says he sees no bias in the way CNN reports news.  What is this, if not bias?