By Tom HaugheyAdvance News JournalTexas Gov. Greg Abbott spoke last weekend at the NRA national convention in Dallas. Although his main emphasis was on (as one would expect) the Second Amendment, he spent plenty of time examining Texas’ actions to secure its border.Abbott characterized his efforts as a battle between himself and President Joe Biden (with the state of Texas on the winning side). He concluded that Biden had purposely dismantled the Trump-era policies which had produced a secure border and then had taken executive action against Texas for attempting to defend itself against an international invasion. He went on ...