Sen. Kay Bailey Hutchison (R., Texas) made a surprise appearance in the Texas voter ID case Thursday afternoon during cross-examination of the survey expert for the U.S. Department of Justice.

Hutchison was included in a survey of Texas voters who do not have state-issued ID, even though she has a valid driver’s license.

Harvard professor Stephen Ansolabehere, who conducted the survey, confirmed that Hutchison, former Sen. Phil Gramm (R., Texas), Republican state Rep. Aaron Pena and Democratic state Sen. Leticia Van de Putte – all of whom have state ID – were included in Ansolabehere’s list of 1.5 million potential Texas voters without state-issued ID.

The professor also said he could not say why these names were on the non-ID list.

Ansolabehere’s testimony will conclude today, and closing remarks in the case will begin at 9 a.m. Friday.

By Lindsey Ruta and Annelise Russell, News21