MICHELLE L. PRICE, CHRIS MEGERIAN, WILL WEISSSERT and JILL COLVIN Associated Press

In a debate that evoked a calmer era in American politics, Tim Walz and JD Vance on Tuesday went after each other’s running mates and sought to shore up their campaigns' vulnerabilities at a time of renewed fears of a regional war in the Middle East and sadness over devastation from Hurricane Helene.