Former President Donald Trump has chosen Ohio Senator J.D. Vance as his vice presidential running mate, a move announced during the Republican National Convention in Milwaukee following an assassination attempt on Trump. Vance’s transformation from a harsh critic to a loyal defender of Trump has raised questions about his motivations but is seen as genuine by Trump and his advisers. Vance, known for his book 'Hillbilly Elegy' and as a U.S. Senator, aligns with Trump on issues like isolationism and economic populism, diverging from traditional Republican views. Trump's survival of the assassination attempt and Vance's selection mark significant developments in the upcoming presidential election.