Yes, in general a private employer can legally fire an employee for their political views. There are exceptions in some states, including California, New York,

Yes, in general a private employer can legally fire an employee for their political views. There are exceptions in some states, including California, New York, Colorado, North Dakota, that have protections for firing by political affiliation or activities, but that's the exception to the rule. Another exception applies to any public employee, since the first amendment applies to their employer. The default employment rule is at-will, meaning someone can be fired for any reason not explicitly prohibited. Political affiliation is not a federally protected category.