Why is there so much tension between Democrats and Republicans?

because there different party's

Explanation:

when two thing are different they wont agree on everything people take there side and stick with it that just how people are  

Explanation:

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

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.

syria

tens of thousands of people were killed in as it’s longtime leader attempted to stay in power.