Here’s how you can categorize each phrase:
White League
- emerged in Louisiana
- wanted to overthrow Republican control
- participated in the Coushatta Massacre
- influenced politics through violence and intimidation
Red Shirts
- emerged in North Carolina
- wanted to overthrow Republican control
- influenced politics through violence and intimidation
Both
- wanted to overthrow Republican control
- influenced politics through violence and intimidation
Since "wanted to overthrow Republican control" and "influenced politics through violence and intimidation" apply to both groups, they can be placed in the "Both" category.