A sergeant from Texas Alcoholic Beverage Commission tells the New York Daily News that the teen indicated Jenna was at the party as well.
Sgt. Charlie Cloud said, "When we were en route to the jail, he did ask, 'Was Jenna all right?'"
Cloud noted that other partygoers said Jenna was at the party, accompanied by the Secret Service.
He said no officials spotted her at the bust at the home of several members of the Sigma Alpha Epsilon fraternity.
White House officials and Secret Service spokesman Tony Ball refused to comment. "We're not making any comments about this incident," said Noelia Rodriguez, a spokeswoman for first lady Laura Bush in Washington.
William Ashe Bridges, an 18-year-old Texas Christian University freshman, was jailed early Sunday after law officers arrested him at a house near the Fort Worth campus, Tarrant County Sheriff Dee Anderson said.
Held at the county jail, Bridges was intoxicated and loudly insisted that he was dating Bush's daughter, Anderson said his deputies told him. When Bridges was allowed to make a phone call, he talked a few minutes and then handed the phone to a jail sergeant, who said a young woman on the line identified herself as Jenna Bush, Anderson said.
"She just asked when he could be released," Anderson said. "No one asked for any special favors whatsoever."
Bridges, who was cited for public intoxication and underage possession of alcohol, was released after four hours' detention. A black Chrevolet Suburban with Virginia license plates arrived outside, and a man came inside to pick up Bridges, Anderson said.
"The deputies didn't really believe Bridges until the black Suburban pulled up and a man came inside," said Anderson.
Jail personnel believed the man was a Secret Service agent. A deputy saw a woman in the vehicle but was not sure if it was Ms. Bush, said Anderson.
Ms. Bush, 19, is a freshman at the University of Texas at Austin.
Her twin sister Barbara is a freshman at Yale.
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