Vice President Kamala Harris used a significant campaign event to address criticism of her handling of migration surges at the southern U.S. border. Republicans have labeled Harris as a failed "border czar" despite her efforts to tackle the root causes of migration from Northern Triangle countries. In her speech, Harris highlighted her experience as California's Attorney General, combating transnational gangs and human traffickers. She criticized former President Donald Trump for not genuinely addressing border security and pledged to revive a border security bill that Trump allegedly undermined.