In the final weeks of the presidential campaign, migration at the U.S.-Mexico border remains a heated topic. Former President Donald Trump calls it an “invasion.” And Vice President Kamala Harris is vowing tougher enforcement. So what is actually happening at the border? Reporter: Tyche Hendricks, KQED The editorials editor of the Los Angeles Times has resigned after the newspaper’s owner, billionaire biotech entrepreneur Patrick Soon-Shiong, blocked the editorials team’s plan to endorse Kamala Harris in this year’s presidential election. Learn more about your ad choices. Visit megaphone.fm/adchoices