When does the challenge for Marco Rubio come?
Come and gone: "Another challenge came from Robert Laity, a resident of Tonawanda, N.Y., who describes himself as founding president of the Society for the Preservation of Democracy and Human Rights, and who has called Obama a traitor. He challenged four Republicans - Cruz, Sen. Marco Rubio, former Sen. Rick Santorum, and Louisiana Gov. Bobby Jindal - on the grounds that at birth, each had at least one parent who wasn't a U.S. citizen."