Susan Crawford has won a seat on the Wisconsin Supreme Court, NBC News projects, allowing liberals to maintain their narrow majority on the battleground state’s highest court — and defying Elon Musk after he spent millions of dollars to oppose her.

Crawford, a Dane County circuit judge who was backed by Democrats, secured a 10-year term on the court over Brad Schimel, a Waukesha County circuit judge and a former Republican attorney general. As the first major battleground state election…