THE ARSONIST PRETENDS TO BE THE FIREFIGHTER... CBS: Harris to call for tougher security measures in first trip to southern border as nominee Vice President Kamala Harris is set to visit Douglas, Arizona, on Friday, marking her first trip to the U.S.-Mexico border since becoming the Democratic presidential nominee. Harris will deliver remarks to call for tougher border security measures as part of her efforts to address border issues, according to a senior campaign official.