What is the difference between partisanship and ideology? When it comes to understanding an individual’s political behavior, which of these should we analyze and why?

Prompt 1: What is the difference between partisanship and ideology? When it comes to understanding an individual’s political behavior, which of these should we analyze and why?
Prompt 2: In today’s political climate, is it important to study the role of social identity? Why or why not?
Prompt 3: How has the 2020 election season fractured or united each of the two major parties? In your response please consider the impact of the Democratic presidential primaries, the Democratic National Convention, and the Republican National Convention