Former US President Donald Trump has selected US Senator J.D. Vance to serve as his vice presidential running mate on July 15. The news, first announced on Trump’s Truth Social media website, emerged at the start of the four-day Republican National Convention in Milwaukee to nominate the party’s presidential ticket. The selection of James David Vance, author of the bestselling memoir “Hillbilly Elegy,” could help boost turnout for Trump in the election. The Ohio native is deeply popular with the Republican candidate’s base. In this episode of Decode, Zakka Jacob explains why Trump selected JD Vance as his running mate?