Former Rep. J.D. Hayworth (R-AZ), who is challenging Sen. John McCain (R-AZ) in the Republican primary this year, appeared on Hardball this evening, and stood by his previous statements in favor of the birther movement. Matthews asked Hayworth: "Are you as far right as the birthers?" Are you one of those who believes that the president should have to prove that he's a citizen of the United States, and not an illegal immigrant? Are you that far right?" "Well, gosh, we all had to bring our birth certificate's to show we were who we said we were, and we were...