Its been three years since a gunman entered an elementary school in Connecticut and killed 20 first graders and six educators. The parents of some of those .
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Mark Barden came to Washington, along with others who lost loved ones at Sandy Hook Elementary School, to lobby for tougher gun control. Despite the .
In an interview for This Week with ABC News Jonathan Karl, Texas Republican Senator Ted Cruz dismissed talk of a potential 2016 White House bid, along .
