Final answer:
The sentence is a statement of fact, not an opinion.
Step-by-step explanation:
The sentence 'Sonia Sotomayor was nominated as a district-level federal judge by a Republican, but she received her Supreme Court nomination from a Democrat' is a statement of fact, not an opinion. It provides specific information about Sonia Sotomayor's nominations and does not express any personal beliefs or judgments.
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