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_26257223_13 (team_classification VARCHAR, winner VARCHAR)
### Question:
Who led team classification during the stage whose winner was Chris Horner?
### Answer:
SELECT team_classification FROM table_26257223_13 WHERE winner = "Chris Horner"