Explain the main difference between the two main parties, the Republican Party and the Democratic Party. Which party believes in large amounts of government involvement and which in small government involvement?

Explanation:

There isn't a single main difference between the two parties. They have differing views in every aspect of government. Some examples I could list out that you could potentially use are:

Economic and taxes: Democrats favor taxing the wealthy while Republicans favor flat taxes and oftentimes not raising taxes at all (which include the wealthy).

Spending on Military and Defense: Democrats want to decrease spending while Republicans want to increase.

Abortion: Democrats support Roe V. Wade while democrats oppose it.

Healthcare: Democrats support more funding towards Medicaid and Medicare as well as more affordable healthcare options. Universal healthcare. Republicans favor more private healthcare systems

Guns: Democrats want more gun restrictions while republicans strong hold to the idea that every person has a right to bear arms.

I would say the Democratic Party believes in large amounts of government involvement whereas Republicans are the opposite.