Arizona Senator Martha McSally, and her dog Boomer, tour the United States/Mexico border in Hereford Saturday morning. McSally first began touring the border in Cochise County when she was a Congressional District 2 candidate in 2011. She has seen multiple changes in border security and border fencing throughout the past 9-years. McSally then visited a Republican outreach event in Sierra Vista's Veterans' Memorial Park before going door to door to campaign for her run for the senate.