Why is there so much tension between Democrats and Republicans?

There are various causes of political polarization and these include political parties, redistricting, the public's political ideology, and the mass media.The share of adults who see strong partisan conflicts – particularly the share who perceive very strong conflicts between Democrats and Republicans – is much higher today than in 2016 or 2012, when the last two presidential elections took place.

Explanation:

There are various causes of political polarization and these include political parties, redistricting, the public's political ideology, and the mass media.