Vice President Kamala Harris will reintroduce herself to the American people Thursday night as she gives the closing address on the last day of the Democratic National Convention. Her campaign said that she will use the most consequential speech of her political career to tell her story. Ed O'Keefe reports from Chicago. Former President Donald Trump visited Arizona Thursday, where he toured the U.S. southern border in his ongoing effort to tie the thorny issue of immigration to his opponent, Vice President Kamala Harris. Caitlin Huey-Burns reports from the campaign trail. CBS News' Ian Lee got an up-close look at how a Ukrainian drone team near the Russian border prepared to launch a $400 drone that can haul four pounds of explosives up to five miles, targeting Russian armor, vehicles and troops inside Russia. Nancy Cordes and Robert Costa examine what to look for in the final day of the Democratic National Convention, and what to expect from the Harris and Trump campaigns as we get closer to Election Day. A former politician charged in the 2022 slaying of Las Vegas Review-Journal reporter Jeff German testified for the second day Thursday in his own murder trial. Robert Telles told the jury that he did not kill the reporter who had written critical articles about him. Carter Evans reports from the courthouse.