"The Fox pipeline is pretty simple. Fox News stokes a constant sense of outrage among its base of viewers, largely by highlighting narratives of white resentment and threats to Christianity. This in turn forces Republican politicians to follow suit. It’s a positive feedback loop that has no obvious braking system, and it’s already radicalized the conservative base so much that most Republicans literally believe that elections are being stolen and democracy is all but dead if they don’t take extreme action."
Looking at the roots of polarization since 2000 there’s a certain cable TV elephant in the room.
Mother Jones