Republican presidential front-runner and retired neurosurgeon Ben Carson has called for the U.S. territory of Puerto Rico to become the 51st state. His comments come as Carson is under fire after news outlets questioned the accuracy of his autobiography, “Gifted Hands.” In the book, Carson describes dining with General William Westmoreland after a Memorial Day parade and later being offered a “full scholarship” to West Point military academy. But after an investigation by Politico, Carson’s campaign acknowledged he never applied to West Point. Since all West Point students attend without cost, there is no such thing as a “full scholarship” to West Point. Speaking on Meet the Press, Carson acknowledged his story about General Westmoreland may not have been entirely accurate.

Ben Carson: “I know he was there in Detroit. And I know it was—there were Congressional Medal of Honor—you know, it may not have been Memorial Day, but it was sometime during the time when I was the city executive officer.”

Meanwhile, The Wall Street Journal has raised questions about Carson’s account of a class he took at Yale called Perceptions 301—it appears there was no such class. And CNN has interviewed a number of Carson’s friends in a bid to verify his claim he tried to stab a friend during what he describes as a violent youth; none of them remembered the incident.