[Gordongekko909]

It's not a protected class. The Civil Rights Act of 1964 doesn't have a title listing Dems, as a group, as a protected class. Discriminate away.

[GeorgefromGeorgia]

Good luck. Complainants come up with many novel arguments to sue. They will likely claim that your preference for Republicans is a pretext for discrimination. Many Democrats are women, minorities, old or non-Christian, so they will have grounds to sue you. Just be sure you have plenty of insurance and legal representation.