We think of some places as entirely blue because they are largely blue, and conservatives never win there. Massachusetts and NYC come to mind*. We regard other places as bright red - Utah and Wyoming, for example. But each have those who disagree within, and enough that they get heard. We think of the New York Times, but the NY Post makes a living as well. Someone reads its content. The Boston Globe is the bigger name, but the Boston Herald gets read. Howie Carr is popular on the radio around Boston. I'm not on the ground in Utah, but have to figure there are some liberals writing there.
*The sometimes elect Republicans to govern themselves, you'll notice. They just want to make sure they only send liberals to govern the rest of us.