JD Vance stands with Shehbaz Sharif, the prime minister of Pakistan. (Fabrice Coffrini/Getty) Abbas AraghchiIran WarJD VanceLake Lucerne Summitmohammed bagher ghalibaf JD Vance looks tired, but he’s feeling upbeat. I’m sitting with the vice president in his office aboard Air Force Two, somewhere over Western Europe, heading home after marathon peace talks with the Iranians in Switzerland. He’s exchanged his suit and tie for a sweater and jeans.