Not at the national level. In California the Fair Employment and Housing Act has a few nebulous clauses regarding political affiliation, but not enough to make

Not at the national level. In California the Fair Employment and Housing Act has a few nebulous clauses regarding political affiliation, but not enough to make a real case. For the most part political affiliation is not a protected category and in some cases an employer is allowed to explicitly discriminate based upon political affiliation (e.g. the CA Republican party can decide not to hire you because you have been a registered Democrat for the past decade, etc.)