ROCK HILL, South Carolina — Former Florida Gov. Jeb Bush, a 2016 GOP presidential candidate, told Breitbart News Daily in an interview here that aired Friday morning on SiriusXM Patriot Channel 125 that he backs an Article V Constitutional Convention of the States to amend the U.S. Constitution for a variety of reasons. Those reasons, Bush laid out in the interview conducted aboard his campaign bus here after a town hall event on Thursday evening, include having a Balanced Budget Amendment, a Line-Item Veto Amendment, and a Term Limits Amendment to the U.S. Constitution.