Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_2417390_4 (vacator VARCHAR, district VARCHAR)
### Question:
Who was the vacator for the district of Nebraska at-large?
### Answer:
SELECT vacator FROM table_2417390_4 WHERE district = "Nebraska At-large"