What is your definition of "left-leaning"?
What is your definition of "fair" in the context of news?
Why do you believe news cannot be "fair" or that we cannot have it?
Is the numeric quantity of sources at any point on the political spectrum relevant? How do you find the middle? Is it an average of all sources? Is it just a scale from MIN to MAX? If it is min/max then can't an extremely conservative (or liberal!) organization move the middle simply by making outlandish claims on their side of the spectrum? Does that make sources that would otherwise be considered "fair" appear biased?